| 单词 | pipette |
| 例句 | Behind the facade lies a vast floor with no halls and no doors—just a gigantic room, doctors and nurses behind white masks, test tubes and pipettes, incubators and gurneys. Legend 2011-11-29T00:00:00Z Quickly, before anyone comes in to question me, I pipette stasis gel in each vial. The Last Cuentista 2021-10-12T00:00:00Z It involved scraping cells from the cervix with a curved glass pipette and examining them under a microscope for precancerous changes that TeLinde and a few others had identified years earlier. The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z They could travel from one culture to the next on unwashed hands or used pipettes; they could ride from lab to lab on researchers’ coats and shoes, or through ventilation systems. The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z After the funeral Mammachi asked Rahel to help her to locate and remove her contact lenses with the little orange pipette that came in its own case. The God of Small Things 1997-01-01T00:00:00Z This is no longer a lab-bench science that relies on test tubes and pipettes to study living organisms. Genetics: The number crunchers who are saving lives 2010-05-29T23:05:00Z There is a delicacy in the details of working in a lab full of microbes and pipettes that dances across the pages like the feet of a Cunningham dancer: pure, precise poetry. Jeremy O. Harris: Brandon Taylor ‘Subjugates Us With the Deft Hand of a Dom’ 2020-02-18T05:00:00Z My sister and I joked about dirty pipettes but in fact my egg had divided abnormally and carried an extra set of chromosomes. IVF: 'I had the dread feeling that I was part of some greater experiment' 2016-05-06T04:00:00Z Not long after Zott converts her kitchen into a lab equipped with beakers, pipettes and a centrifuge, she gets hoodwinked into hosting a staid television cooking show called “Supper at Six.” She Moved From the Chem Lab to the Kitchen, but Not by Choice 2022-04-04T04:00:00Z “So sterilize those beakers! Disinfect that glass pipette!” In a Musical About Penicillin’s Inventor, Superbugs Take Center Stage 2022-10-21T04:00:00Z The device seemed to consist of nothing more than a pipette fastened to a robotic arm that moved back and forth on a gantry. The College-Admissions Scandal and the Banality of Scamming 2019-03-13T04:00:00Z First, Mr. Harding and his staff members use fine glass pipettes to dab a dot of oil on a customer’s hand; the customer samples that fragrance and moves on. Skin Deep: Aromatherapy: Competing for Your Nose 2010-07-28T21:09:00Z Each station came equipped with an apron, pipettes, paper fragrance testers, glass beakers, six essences in brown bottles and Evian water, because you can really work up a thirst sniffing. What’s it like to film a TV travel show? I joined the crew of “Travels With Darley” to find out. 2018-04-12T04:00:00Z Fox, on the other hand, uses a pipette to dispense controlled bursts of color onto the canvas. Renewing your faith in painting 2012-07-12T17:25:00Z Mr. Walker, 25, rubbed his forehead and plucked a strand from his eyebrow and carefully placed it inside a thin clamp-like device called a pipette tip. Tickling Worms in the Lab, Tickling Funny Bones Onstage 2019-03-21T04:00:00Z On a recent evening, masked students sat around stainless-steel tables in the scent lab at the Institute for Art and Olfaction in Los Angeles’s Chinatown, pipettes at the ready. Can Scent Be Democratized? 2022-03-18T04:00:00Z Nalgene, which began as a plastic laboratory pipette maker before outdoorsy scientists realized they were perfect for camping, became an accessory for college students in the early aughts. Everyone’s Resolution Is to Drink More Water in 2020 2020-01-04T05:00:00Z Trademarks: His OCD-ish attention to presentational detail, Hispanic flourishes, fondness for scientific pipettes and ability to use two mixers at once. The Great British Bake Off final 2014-10-05T04:00:00Z Yeah, that was fun to shoot – lying in a box with a big burly grip dripping water on my face from a pipette. Stephen Graham: ‘The Irishman was my Champions League final’ 2019-12-15T05:00:00Z It’s like a dorm-room version of a laboratory, complete with a microscope, a bouquet of pipettes and a spice rack crowded with essential oils “worth about $2 million,” he claimed. The Sorcerer of Shaken and Stirred 2011-03-16T05:31:02Z To spread the mixture out, Zoll gently taps it with the tip of a pipette dipped in a surfactant—dish soap in this case. See Crystals Form a Mesmerizing World of Microscopic Landscapes 2022-03-23T04:00:00Z Because the wells were so small, they couldn’t simply pipette liquids into them. The Gene-Synthesis Revolution 2021-11-24T05:00:00Z The fragmented and siloed world of laboratory science became the crux of the crisis; the fate of millions rested upon hand pipettes and fax machines. Biohackers at the gate: The untold story of how DIY experimenters waged war on COVID-19 2021-10-15T04:00:00Z One by one, he and his collaborators inactivated genes until they identified the single one that, when disabled, made the cells insensitive to the poke of a tiny pipette. Nobel Prize Awarded for Research About Temperature and Touch 2021-10-04T04:00:00Z To find the sensors that underlie touch, Patapoutian, at Scripps Research, poked cells with a tiny pipette tip to find the ones that responded with an electrical signal. Nobel Prize in medicine awarded to two U.S.-based scientists ‘for their discoveries of receptors for temperature and touch’ 2021-10-04T04:00:00Z Patapoutian also discovered the gene that enables nerve cells to sense pressure—being poked, for example, by a pipette. Hot—and cool—research wins Nobel Prize in Physiology or Medicine 2021-10-04T04:00:00Z Years of training rewarded with a pipette's worth of improvement. Warholm evokes Bolt & Beamon on magic day 2021-08-03T04:00:00Z When squeezed in front of the eye, lemon peel produced tears on demand, which were collected in glass pipettes and placed into tubes for study. Penicillin Wasn’t Alexander Fleming’s First Major Discovery 2021-04-27T04:00:00Z Wakefield saw these thicker samples regularly hanging off robot pipette tips and dripping across other samples when being transferred to the testing plate. Covid: Secret filming exposes contamination risk at test results lab 2021-03-29T04:00:00Z Technologists are nursing repetitive-use injuries, a result of hours of maneuvering tubes and pipettes, which take up and dispense liquids with the press of a plunger. ‘Nobody Sees Us’: Testing-Lab Workers Strain Under Demand 2020-12-03T05:00:00Z The lab company said operations are being squeezed by shortages of testing chemicals, pipettes — the slender tubes used to measure and dispense chemicals — and other supplies. Heading into holidays, US COVID-19 testing strained again 2020-11-19T05:00:00Z The lab company said operations are being squeezed by shortages of testing chemicals, pipettes - the slender tubes used to measure and dispense chemicals - and other supplies. Heading into holidays, US COVID-19 testing strained again 2020-11-19T05:00:00Z The group said that its member labs had performed nearly a half-million virus tests on Wednesday and were experiencing shortages of pipette tips and other testing essentials. 8 Months After Virus Hit, an Ominous Sign: Long Lines for Testing Again 2020-11-13T05:00:00Z After we saw many errors stemming from the use of pipettes outside the calibrated range, we set up ‘pipetting exercises’ and saw the rate of these errors fall. Institutions can retool for to make research more rigorous 2020-10-13T04:00:00Z Called transfer pipettes, they’re a basic material used to move specimens from one container to the next — and an alternative to standard pipettes, which require the tips that are now in short supply. U.S. medical supply shortage affects far more tests than the one for COVID-19 2020-09-01T04:00:00Z Also, she said, “saliva is bubbly and hard to pipette.” Why Antibody Tests Won’t Help You Much 2020-08-21T04:00:00Z Researchers need these little disposables, called pipette tips, to quickly and precisely move liquid between vials as they process the tests. ‘It’s Like Groundhog Day’: Coronavirus Testing Labs Again Lack Key Supplies 2020-07-23T04:00:00Z Storksdieck, an advocate of online learning, questions the value of smelling fumes or using a pipette. During the pandemic, students do field and lab work without leaving home 2020-07-15T04:00:00Z Lab workers hovered over patient samples, using the plastic droppers known as pipettes to manually extract genetic material from them, one by one. The inside story of how California failed mass coronavirus testing 2020-07-12T04:00:00Z Not all of these efforts will translate easily to individual laboratories, where ultracold freezers and single-use plastic pipette tips remain necessary for certain sensitive experiments. What can you do to make your lab greener? 2020-05-10T04:00:00Z He and his colleagues collected these secretions from the wrist glands with a tiny pipette and analyzed the chemical components. Male lemurs may spread fruity ‘love potions’ with their tails 2020-04-16T04:00:00Z “That’s the crazy part,” said Dr. Alexander McAdam, director of the infectious diseases diagnostic laboratory at Boston Children’s Hospital, one of many institutions seeking the prized pipette tips. ‘It’s Like Groundhog Day’: Coronavirus Testing Labs Again Lack Key Supplies 2020-07-23T04:00:00Z Many of them say the biggest challenge is getting not the diagnostic tests themselves but the supplies to process them, including chemical reagents, swabs and pipettes. Testing Falls Woefully Short as Trump Seeks an End to Stay-at-Home Orders 2020-04-15T04:00:00Z As the sun rose on Wednesday morning, a scientist used a pipette to remove liquid from each tube and place it in the testing apparatus. 3 Vans, 6 Coolers, a Plane, a Storm and 2 Labs: A Nasal Swab’s Journey 2020-04-13T04:00:00Z That sample is then mixed in a tube and transferred with an included pipette into the Cepheid cartridge, which contains testing reagents, according to the company. FDA approves new coronavirus test that can have 'results within hours' instead of days 2020-03-21T04:00:00Z “Increased demand for testing has the potential to exhaust supplies needed to perform the testing itself,” including reagents, plastic pipette tips, and other products, the American Society for Microbiology said in a statement. Coronavirus testing process lacks key ingredient, causing confusion 2020-03-11T04:00:00Z Eventually, she’ll “find someone to manufacture a plastic pipette tip,” she said. ‘It’s Like Groundhog Day’: Coronavirus Testing Labs Again Lack Key Supplies 2020-07-23T04:00:00Z In our hands, washing cells too vigorously or using the wrong-size pipette tip changed results unpredictably. A controlled trial for reproducibility 2020-03-09T04:00:00Z With a pipette, he beaded the solution onto 10 sample holders, each the size of a flea. ‘We need a people’s cryo-EM.’ Scientists hope to bring revolutionary microscope to the masses 2020-01-23T05:00:00Z They would start with a type of mouse cell that they knew was capable of transforming a tiny poke from a pipette into a measurable electrical current. Feel the force: How cells sense touch 2020-01-07T05:00:00Z I learnt how to hold a pipette, run a magnetic resonance imaging system, conduct animal experiments and design biology studies. Twelve tips for engaging with biologists, as told by a physicist 2020-01-05T05:00:00Z Fed into automated devices, pipette tips can help researchers blaze through hundreds of coronavirus tests in a matter of hours, sparing them grueling manual labor. ‘It’s Like Groundhog Day’: Coronavirus Testing Labs Again Lack Key Supplies 2020-07-23T04:00:00Z At that time, current was commonly recorded by impaling tissue with a sharp electrode — a pipette with a very fine point. A breakthrough method that became vital to neuroscience 2019-10-21T04:00:00Z Typically, researchers use pipettes to apply microliters of the protein solution to sample holders and blot away the excess with filter paper. ‘We need a people’s cryo-EM.’ Scientists hope to bring revolutionary microscope to the masses 2020-01-23T05:00:00Z Coste poked with his pipette, and the cell did not respond. Feel the force: How cells sense touch 2020-01-07T05:00:00Z Silvia Colleoni’s hand trembled as she injected liquid into a pipette, preparing a sample of sperm for a delicate laboratory procedure. 2 of these rhinos are left, both female. There's a chance IVF could save their species 2019-08-27T04:00:00Z Per the instructions, we let it sit for 30 minutes to liquefy, gave it a good swirl, then deposited a pipette’s worth of fluid into a test prop. Can You Prevent Pregnancy with the Pullout Method? 2019-05-16T04:00:00Z Instead of impaling the cells, a pipette with a relatively large diameter is pressed against the cell membrane. A breakthrough method that became vital to neuroscience 2019-10-21T04:00:00Z She squeezes two drops of liquid on to her tongue from the pipette. Women who microdose mushrooms: 'It makes me enjoy playing with the kids' 2019-05-03T04:00:00Z The process, then known as combinatorial chemistry, involved setting up multiple parallel reactions on solid supports, filtering those reactions through cartridges and using multichannel pipettes. Automation: Chemistry shoots for the Moon 2019-04-22T04:00:00Z The seal, swaddled in blankets, is fed five times a day with a pipette. St Petersburg ice walls thrill Russians 2019-03-12T04:00:00Z Instead, they show doctors or nurses doing our work while holding pipettes upside down. Hollywood's Portrayals of Science and Scientists Are Ridiculous 2019-01-15T05:00:00Z On a gray day, Temme and Tamsir, both feeling defeated, laid down their pipettes and left their lab in search of coffee. Our fertilizer is killing us. Here’s a fix 2018-10-11T04:00:00Z The robot whirs like an arcade claw machine, dropping blips of DNA into tubes with pipettes. The future of food: Scientists have found a fast and cheap way to edit your edibles’ DNA 2018-08-11T04:00:00Z To prevent stress, the corals are strictly monitored by students who hand-feed them with pipettes, like mamas tending to baby birds. This Coral Must Die 2018-06-25T04:00:00Z They also cart in thousands of test tubes, pipettes, and other equipment to create their field lab. Research during Ebola vaccine trial: It’s complicated 2018-05-25T04:00:00Z We moved down the aisle of his lab, amid a jumble of computer screens and rows of lab desks, beakers, binders and pipettes. At Hamburger Central, Antibiotics for Cattle That Aren’t Sick 2018-03-23T04:00:00Z They learned how to pipette different microliter volumes with accuracy and precision. Scientist brings subject to life for Bunker Hill students 2017-12-08T05:00:00Z On a daily basis, scientists use and then dispose of plastic tubes, gloves and pipette tips, all destined for the landfill. Why Are Scientists So Bad at Recycling? 2017-10-19T04:00:00Z In a world where most scientists are so wary of public conflict that they seem to apportion criticism with a pipette, the new doubts about Croce’s work draw carefully measured opinions from some towering figures. Despite years of ethics charges, no penalties for star cancer researcher 2017-03-08T05:00:00Z Researchers can create a pipetting programme online, which can then be pushed to the lab's pipettes. The Internet of Things comes to the lab 2017-01-29T05:00:00Z The tip of the pipette is then discarded. Dutch Fertility Clinic Investigates Possible Sperm Mix-Up 2016-12-28T05:00:00Z Elsewhere, scientists toil with petri dishes and automated pipettes to test new strains. Clean Tech Rises Again, Retooling Nature for Industrial Use 2016-12-27T05:00:00Z Using a glass pipette, she transferred a few drops of methanol into the vial and clamped it shut. Inside the DEA: A chemist’s quest to identify mystery drugs 2016-12-21T05:00:00Z While their wands were baking, students learned how to write with electricity, using a copper wire as a pen that was run through a pipette and attached to a battery. Harry Potter-inspired class focuses kids on magic of science 2016-12-21T05:00:00Z There, he joined some 20 students learning to pipette liquid extracts into gels and stain them with pigments to figure out which protein molecules they contained. Is It Possible to Make a Less Allergenic Peanut? 2016-12-15T05:00:00Z The technician, upon completing the procedure, discovered that there was still genetic material on the tip of the pipette, Mr. Geurts said. Dutch Fertility Clinic Investigates Possible Sperm Mix-Up 2016-12-28T05:00:00Z My task is to pipette the oligo from one tiny test tube into another. One of our reporters tried to do CRISPR. He failed miserably. 2016-11-03T04:00:00Z Rubins showed Collins one of the large laboratory pipettes - droppers for liquid samples - she took up to test in weightlessness. Astronaut describes career detour to US health director 2016-10-18T04:00:00Z Equally adept with a pipette and a trowel, she unites the collective insights of traditional plant-based healing with the rigor of modern laboratory experiments. Could Ancient Remedies Hold the Answer to the Looming Antibiotics Crisis? 2016-09-14T04:00:00Z The electron then creates an electric current inside the pipette that the researchers recorded to see how the neuron was behaving. A tiny ball of gold could help fight Alzheimer’s 2016-08-22T04:00:00Z She drew a sample into a pipette and held it up to the sun. Brazil defeated the mosquito that spreads Zika once before — few expect it to do so again 2016-08-14T04:00:00Z Her talk — touted by a public relations firm as a “breakthrough presentation” and filled with videos of robots moving liquids with pipettes — focused on the technical specifications of the new device, called miniLab. Under siege, Theranos introduces a new technology 2016-08-01T04:00:00Z The prize for the contest was ten thousand dollars—barely enough to keep a research lab in pipette tips. A Radical Attempt to Save the Reefs and Forests 2016-04-18T04:00:00Z The device, which runs on the commercial programming platform LabVIEW, only requires researchers to position the animal and the pipette. Robots record brain activity inside neurons 2016-03-31T04:00:00Z The standard process for isolating stem cells from neural tissue required roughing up the tissue and then sluicing it aggressively through a pipette, a process known as trituration. The Stem-Cell Scandal 2016-02-29T05:00:00Z Doses are delivered with a pipette and take around 30 minutes to reach peak effect. Drug allegedly used as poison by serial killer suspect led to 20 deaths in 2014 2015-10-20T04:00:00Z A small plunger inside the pipette touches the sample directly, ensuring that no air gets in. Zero-gravity genomics passes first test 2015-10-12T04:00:00Z The little plastic pipettes I use to drop it, I keep separated by which type of moon dust it is in a Ziploc bag, and then I’ll send everything back. Boulder scientists get chance to work on lunar dust 2015-10-10T04:00:00Z In this version, instead of blindly bumping into neurons with a pipette, scientists target specific neurons near the brain’s surface using a two-photon microscope. Robots record brain activity inside neurons 2016-03-31T04:00:00Z Martin had starved the cells, frozen them, and deprived them of oxygen, but he got the best results from mechanical stress—squeezing them through a pipette. The Stem-Cell Scandal 2016-02-29T05:00:00Z Using a micro pipette, we injected a tiny drop of oil containing fluorescent dyes into a cell. We Transformed Living Cells from Pigs into Tiny Lasers 2015-07-28T04:00:00Z Mastery of the basics: “I didn’t even know where the pipettes were.” Timeless advice 2015-07-21T04:00:00Z The researchers also found that when they push their solution through a pipette, the particles swim against the current. Tiny plastic particles propel themselves like bacteria 2015-05-01T04:00:00Z The procedure requires more coordination than blind patch-clamping because the scientist must constantly focus the microscope in addition to guiding the pipette and adjusting its internal pressure. Robots record brain activity inside neurons 2016-03-31T04:00:00Z “Squeezing cells through a pipette, starving cells, and so on.” The Stem-Cell Scandal 2016-02-29T05:00:00Z The team held Licina’s eyes open while a small amount of solution was dropped onto the eyeballs using a pipette, and then given time to absorb. Experimental Night Vision Eye Drops 'Let You See in the Dark' 2015-03-27T04:00:00Z Using a long pipette, the technician distributed the slurry among five sterilized plastic bottles. The Excrement Experiment 2014-11-24T05:00:00Z The pills were made by blending up stool with saline, straining the solution, extracting the bacteria, using a pipette to put the material into pills and freezing them. Fecal Transplants May Soon Be Available In A Pill 2014-10-11T04:00:00Z Then, with the coordinates locked in, the device navigates the pipette into place. Robots record brain activity inside neurons 2016-03-31T04:00:00Z The program also supplies laboratory equipment, including protective garments, pipettes, and all materials needed to analyze blood samples. Exclusive: U.S. cuts resources for project involved in Ebola battle in Sierra Leone 2014-08-07T04:00:00Z He opened it, took out a test tube, and used a pipette to transfer its contents into a dish. The Brave New World of Three-Parent I.V.F. 2014-06-27T04:00:00Z The extra liquid and the pipette itself, however, can destroy it: only half of cells that undergo this procedure survive. How to Get New Genes Into a Cell 2014-06-26T04:00:00Z She uses a pipette to transfer the top matter to different containers labeled with corresponding numbers. Long-forgotten rape evidence finally reveals its clues in Northern Virginia lab Then the embryologist eases a pipette into the hole and plucks out the pronuclei, twin genetic structures that result from fertilization. Reproductive medicine: The power of three 2014-05-20T04:00:00Z To check that parallel fibres were being successfully activated, the field potential was monitored in the molecular layer using a 4 MΩ patch pipette filled with aCSF. Capillary pericytes regulate cerebral blood flow in health and disease 2014-04-04T18:24:22.627Z Medium was sampled directly from the vessel by pipette. Metabolic determinants of cancer cell sensitivity to glucose limitation and biguanides 2014-04-04T14:06:22.655Z In place of a pipette, scientists at Brigham Young University have developed a silicon lance. How to Get New Genes Into a Cell 2014-06-26T04:00:00Z The researchers also designed a flowerlike pipette that a diner can dip into a palate-cleansing cocktail to carry a droplet to his or her tongue. Chefs and Scientists Design Bioinspired Cocktail Gadgets 2014-02-10T17:59:00Z In fact, for many chemists and chemical engineers — those who work with bucketloads of reactants rather than the contents of pipettes — what goes on inside an industrial reactor is something of a mystery. Magnetic map 2013-10-23T17:20:04.003Z They are going to understand that they need to widen their skill sets, the best pipette jockey doesn’t always get the job. Two ships passing in the night: neuroscience and social media 2013-03-18T12:45:03.027Z She pipettes a little into a vial, adds a bit of salt and shakes gently. Biomedicine: The new gold standard 2013-03-13T18:21:23.433Z To me scientist does conjure up an image of fully antiseptic lab environment, white lab coats and pipettes. Data Science or Analytics? 2013-02-25T19:03:15Z The pipettes fold their petals shut when pulled out of the liquid, trapping a droplet inside. Chefs and Scientists Design Bioinspired Cocktail Gadgets 2014-02-10T17:59:00Z He doesn’t have to handle any pipettes, let’s put it that way. Thomas Pierce: “Shirley Temple Three.” 2012-12-17T05:00:00Z But his experiment involved the removal of cell nuclei with pipettes followed by their introduction into other cells. The 2012 Nobel Prize in Physiology or Medicine 2012-10-08T11:45:05.853Z The cells were placed in nutrient solution and then dripped by pipette over the scaffold. Body Builders: Scientists Make Progress in Tailor-Made Organs 2012-09-16T01:03:13Z The authors give a vivid account of his using a pipette in his mouth to suck saliva from the mouth of a rabid dog strapped to a laboratory table. Side Effects: Searing Narrative of Rabies, and the Desperation to Forget It 2012-07-16T19:56:24Z Using a 3-D printer, the researchers prototyped the gadgets and then produced molds so that Andrés and his team could make boats and pipettes out of gelatin or candy. Chefs and Scientists Design Bioinspired Cocktail Gadgets 2014-02-10T17:59:00Z If the liquid caustics are employed, they may be introduced into the depth of the wound by means of a pipette, a piece of porous wood, or a pledget of tow. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Hosseinkhani returned to the hospital last week to nick some more pipettes and was taken into custody, as reported in the New York Post. Lab Sabotage: Some Scientists Will Do Anything to Get Ahead 2011-12-06T19:15:18.233Z I put it under the microscope, and, having added a drop of water with a pipette, looked through the glass. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z Apparatus and Dilutions Necessary: 1 cc. pipette graduated to 1⁄10 cc. Nurses' Papers on Tuberculosis : read before the Nurses' Study Circle of the Dispensary Department, Chicago Municipal Tuberculosis Sanitarium 2011-11-25T03:00:11.053Z Oviducts of several females were flushed by means of a pipette to determine whether they contained sperm. Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz 2011-10-01T02:00:30.200Z Reagents are spotted on by hand with a pipette — a tedious job, but the $100,000 machine that can automate it is not in the budget, Dr. Ryan said. Testing for Disease, for Under a Penny, Using Bits of Paper 2011-09-26T22:21:15Z After allowing the sludge to settle remove 10 c.cms. by means of a pipette and titrate by one of the following methods: Bunsen’s Method. Chlorination of Water 2011-09-13T02:00:32.243Z Oxygen is absorbed by stick phosphorus contained in a tubulated pipette filled with water. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z Ampuling can be done with an automatic syringe or pipette, provided a large gage needle is used. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z There, a man is blowing bulbs, droll balloon pipettes, all the multitude of glass contrivances the laboratories demand. McClure's Magazine, Vol. 1, No. 4, September 1893 2011-07-21T02:00:22.737Z The upper end is closed, and formed into a bulb; the lower is turned up, formed into a cistern, and open at top, through a pipette, or cone. A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility 2011-06-19T02:00:15.717Z The volume contents of the pipettes are most carefully determined and the depth of the cell is established by accurate micrometric measurement, thus permitting very exact observations by means of this instrument. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z The form of the pipette varies with the nature of the absorbing material. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z The funnel is closed at its lower end by a tightly-fitting cork H, in which an opening is made, through which opening the pipette passes and projects slightly below. Friction, Lubrication and the Lubricants in Horology 2011-01-20T03:00:07.073Z When they arrived at a lab crowded with flasks, pipettes and aging equipment held together with pieces of red tape, the students plunged vials of E. coli bacteria into the ice-filled buckets. U-Va. students are using DNA to try to make a 'new machine' 2009-10-23T04:00:00Z Below the contracted part is inserted a pipette—or Gay Lussac air-trap—which is a little elongated funnel with the point downwards. A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility 2011-06-19T02:00:15.717Z "It has permanent, lasting effects," said Taylor, donning a white coat in his New Haven, Connecticut, lab surrounded by beakers, microscopes, pipettes and other tools of the scientist's trade. Special Report: Waiter, there may be a carcinogen in my soup 2010-06-09T13:16:00Z Some common forms of absorption pipettes are shown in figs. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z G is a small, shallow vessel, preferably of glass, of sufficient capacity to receive the contents of the pipette. Friction, Lubrication and the Lubricants in Horology 2011-01-20T03:00:07.073Z All 16 victims were induced to take, simultaneously, a deadly poison measured through pipettes into teacups, a procedure that Yamaguchi first demonstrated calmly, stressing how important it was to take the liquid on the tongue. Book Review | 'Occupied City,' by David Peace 2010-03-19T16:59:00Z Should the mercury of the short column get detached, some small quantity of air may pass; but it will be arrested at the pipette, and will not vitiate the length of the barometric column. A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility 2011-06-19T02:00:15.717Z Delicate knives, scissors, needles mounted in handles, forceps, pipettes or little tubes for taking up water, should be obtained; these are essential to all microscopical study. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers There it is allowed to remain, the pipette being shaken from time to time. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z A pipette is a small glass instrument employed in practical chemistry. "Pip" A Romance of Youth Allow the lyes to settle and with an inverted pipette draw off the lyes into a test tube or bottle. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The barometer tube is a syphon of large calibre, provided with a Gay Lussac pipette, or air-trap; and fitted with a float, a wheel, and a pointer, as in the “Dial” barometer. A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility 2011-06-19T02:00:15.717Z This mercury must be removed by a fine pipette in order to use the tap again. The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students The same order of absorption and general directions pertaining to the use of Hempel pipettes have to be adopted. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z Then with a pipette we introduce into the solution, in a regular pattern, a number of drops of liquid coloured with Indian ink. The Mechanism of Life Add 25 cc. of iodine solution from a pipette, allowing to drain for a definite time. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. He withdrew the solution from the cylinder with a pipette, then introduced some more of the dissolved blood from the handkerchief. The Social Gangster When, however, a pipette or burette has to be calibrated to deliver a certain volume of water, the final calibration must be made with this liquid. A Handbook of Laboratory Glass-Blowing The waggons of jars would be run in, and culture added to each jar by a sterilised pipette. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente With one hand he adjusted the focus of his microscope, while with the other he brought the sharp glass tip of the pipette into view. The Blue Ghost Mystery Pipette 50 cc. of the alcoholic potassium hydroxide solution into the flask, allowing the pipette to drain for a definite time. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. All about him as he proceeded were glass containers, capillary pipettes, test tubes, Bunsen burners, and dialyzers of porous parchment paper whose wrappers described them as "permeable for peptones, but not for albumins." The Social Gangster The capillary hydrometer consists simply of a small pipette with a bulb in the middle of the stem, the pipette terminating in a very fine capillary point. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" The drops fell tantalisingly from the pipette into the silver-gilt goblet. Letters from my Windmill Then, while the others watched, he selected a well slide, took his pipette, and captured a drop from the jar of pool water. The Blue Ghost Mystery Conduct 2 or 3 blank determinations, using the same pipette and draining for the same length of time as above. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Kœppe has slightly varied this method; he fills his handily constructed pipette, very carefully cleaned, with cedar wood oil, and sucks up the blood, as it comes from the fingerprick into the filled pipette. Histology of the Blood Normal and Pathological Remove those tubes which give evidence of growth from the Buchner's tubes and carefully pipette off the whey; examine the whey microscopically. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. It was given either by esophageal catheter, or by dropping it into the mouth from a pipette. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say Then she drew a drop of blood from her forefinger and filled a red and white cell pipette, and made a smear of the remainder. Pandemic The annexed woodcut shows a chamber, with six test-tubes, its side-windows w w, its pipette p c, and its sinuous channels a b which connect the air of the chamber with the outer air. Fragments of science, V. 1-2 Of the instruments for measuring the depth of colour of the blood, the double pipette of Hoppe-Seyler is quite the most delicate. Histology of the Blood Normal and Pathological Adjust in the same way a pipette and a washer in the mouth of each of the other tubes, B, C, D and E. 8. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. It is essential that the lubricant should flow on to the end of the file very freely, either from a pipette or from the regular oil-feed. On Laboratory Arts In examining red must, the method should be modified as follows:—Instead of first filling the pipette with tincture of litmus, fill it with water to the line A, and transfer it into the bottle. The Cultivation of The Native Grape, and Manufacture of American Wines To most patients the application with the pipette may be too difficult or impossible; I have therefore already suggested the use of Weber's very simple but effective nose-douche. Fragments of science, V. 1-2 By means of a curved pipette, the drop of blood is brought into the fluid, and its immediate motion observed. Histology of the Blood Normal and Pathological Insert the point of the pipette into the subculture tube, and blow out the mixture into the medium—replug the tube and drop it into the wire basket. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. With a pipette measure into a small beaker 2 cc. of lemon juice. Human Foods and Their Nutritive Value While Nadia controlled her impatience as best she could, Stevens manipulated the bulbs and pipettes of the gas apparatus. Spacehounds of IPC I then lay flat on my back, keeping my head very low, and poured with a pipette about four cubic centimetres into both nostrils. Fragments of science, V. 1-2 A small glass instrument, called a pipette, comes with each machine. Agriculture for Beginners Revised Edition Sterile graduated capillary pipettes to contain 90 c. mm. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. On this account the standard solution is run in from a special pipette capable of delivering a practically invariable volume of solution. A Text-book of Assaying: For the Use of Those Connected with Mines. The three manometers are filled to the same level with mercury, the quantity being adjusted by means of a pipette. Scientific American Supplement, No. 711, August 17, 1889 The fresh but putrescible liquid is introduced into the six tubes in succession by means of the pipette. Fragments of science, V. 1-2 Put one end of the pipette into the milk sample and the other end into the mouth. Agriculture for Beginners Revised Edition Drop the pipette into the cylinder containing lysol solution. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. If the first addition of the weaker salt solution causes no cloudiness add 5 c.c. of the silver solution from an ordinary pipette, shake, and then run in the weaker salt solution, working as before. A Text-book of Assaying: For the Use of Those Connected with Mines. This can easily be done by using a small pipette, but if accidentally a little runs over, it should be wiped off the end of the cork with blotting paper. Scientific American Supplement, No. 508, September 26, 1885 This is pierced in the middle by a pin, and through the pin-hole is pushed the shank of a long pipette, ending above in a small funnel. Fragments of science, V. 1-2 Suck milk into the pipette until the milk comes up to the mark on the side of the pipette. Agriculture for Beginners Revised Edition Open the thorax with all aseptic precautions, and collect as much blood as possible from the heart with a sterile Pasteur pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Warm until any precipitate which has formed is redissolved; allow to cool slowly, and run in from a pipette a weak solution of permanganate until a faint brown colour is produced. A Text-book of Assaying: For the Use of Those Connected with Mines. The oil is separated by means of a pipette, filtered, and bottled off. Scientific American Supplement, No. 643, April 28, 1888 It consists simply of a straight pipette, A B, to which is affixed laterally, at the upper part, a small U-shaped water gauge. Scientific American Supplement, No. 561, October 2, 1886 As soon as the mark is reached, withdraw the pipette from the mouth and quickly press the forefinger on the mouth end. Agriculture for Beginners Revised Edition Take up the required dose of inoculum into a sterilised pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The principle of the pipette, and the advantages and disadvantages of its various forms, may be understood by considering the first form shown in fig. A Text-book of Assaying: For the Use of Those Connected with Mines. When drinking out of the pipette, the cork must be loosened in order to admit air, like a vent hole. The Art of Travel Shifts and Contrivances Available in Wild Countries The two branches of the gauge, as well as the pipette itself, are graduated into equal divisions. Scientific American Supplement, No. 561, October 2, 1886 Then put the lower end of the pipette into one of the small long-necked bottles of the machine, and, lifting the finger, allow the milk to flow gently into the bottle. Agriculture for Beginners Revised Edition Make a mark with the grease pencil on the stem of one of the pipettes about 2 or 3 cm. from the open extremity. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The flow of liquid from a pipette must not be hastened by blowing into it. A Text-book of Assaying: For the Use of Those Connected with Mines. Lastly, the vessel has a pipette for drinking through, and a larger hole by which it is to be filled, and which at other times is stopped with a cork or wooden plug. The Art of Travel Shifts and Contrivances Available in Wild Countries The zero of the pipette's graduation is exactly at the lower extremity, B. The graduation of the two gauge tubes extends in both directions from a zero situated near the center. Scientific American Supplement, No. 561, October 2, 1886 With the aid of a pipette cover these spots with water and let it remain for ten or fifteen minutes; then with the pipette remove the liquid and examine the products it holds in solution. Disputed Handwriting An exhaustive, valuable, and comprehensive work upon one of the most important subjects of to-day. With illustrations and expositions for the detection and study of forgery by handwriting of all kinds Again introduce the end of the pipette into the fluid and draw up a second volume of saline to the level of the grease pencil mark, and follow this with a second air index. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. All measurements should be made at the ordinary temperature; and, before being used, the pipette should be rinsed out with a cubic centimetre or so of the solution to be measured. A Text-book of Assaying: For the Use of Those Connected with Mines. On a small scale we produce them thus: A common tea-tray is filled with water, beneath the surface of which dips the end of a pipette. Six Lectures on Light Delivered In The United States In 1872-1873 Then, his face slightly pale, his bulging eyes blinking nervously, he took two small flint glass bottles, set them under a couple of pipettes, and deftly made connections. The Air Trust Similarly, a burette used for the titration of the 50 cc. of solution removed should be calibrated under the same conditions as the measuring flasks or pipettes employed with it. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Collect a quantity of pleuritic effusion, if such is present, in a pipette for further examination later. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Burettes differ mainly from pipettes in having the flow of liquid controlled from below instead of from above. A Text-book of Assaying: For the Use of Those Connected with Mines. Spirit of turpentine is poured into the pipette; it descends, issues from the end in minute drops, which rise in succession to the surface. Six Lectures on Light Delivered In The United States In 1872-1873 Even as he spoke, a lambent, sparkling liquid began to flow through the pipette, into the flask. The Air Trust Quickly place the forefinger over the top of the tube, thus preventing the entrance of air and holding the water in the pipette. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Remove one of the 1 c.c. pipettes from the case, holding it by the plain portion of the tube. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The lower tube or nose of the pipette should be long enough to reach into the bottle or flask containing the liquid about to be measured. A Text-book of Assaying: For the Use of Those Connected with Mines. In the February number of this Journal the writer described a new settling tube for urinary deposits which possessed several advantages over the old method with conical test-glass and pipette. Scientific American Supplement, No. 595, May 28, 1887 He dipped into this bottle or that, drawing out a few drops of each with his glass pipette, and finally brought a test-tube containing a solution over to the table. The Memoirs of Sherlock Holmes Burettes may also be calibrated by drawing off the liquid in successive portions through a 5 cc. pipette which has been accurately calibrated, as a substitute for weighing. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Withdraw the pipette from the bottle, replace the stopper, and stand the bottle upright. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The neck of the pipette should be long enough to allow its being firmly grasped by the fingers and thumb of the right hand without inconvenience. A Text-book of Assaying: For the Use of Those Connected with Mines. Let it suffice to say, blood obtained from a still living animal, in most cases from a human being, was run directly by means of a little pipette into the recipient canal. The War of the Worlds "Let us have some fresh blood," he said, digging a long bodkin into his finger, and drawing off the resulting drop of blood in a chemical pipette. A Study in Scarlet Hold the water at that point by pressure of the finger and then allow the water to run out from the pipette into a small tared, or weighed, beaker or flask. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Adjust a sterile 1 c.c. pipette in the mouth of each of the tubes, A, B, C, D and E, by means of a washer, as previously described. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The other form is the one in general use; in fact, a long nose to a pipette is so convenient that it may almost be said to be necessary. A Text-book of Assaying: For the Use of Those Connected with Mines. A twice perforated stopper is fitted to this flask, carrying through one opening a 25 c c. pipette nearly filled with sulphuric acid, sp. gr. Scientific American Supplement, No. 324, March 18, 1882 By the time the excess of water has been removed with a pipette until it is exactly level with the mark, and all is ready, the temperature will rise nearly 0.5°. Scientific American Supplement, No. 288, July 9, 1881 The increase in weight of the flask in grams represents the volume of the water in cubic centimeters delivered by the pipette. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Add 1 c.c. of the sewage to capsule No. I by means of a sterile pipette, and mix thoroughly. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. A portion of the solution is drawn off with a pipette; if it smells of ammonia, has no blue colour, and gives no precipitate with ammonic sulphide, the separation is complete. A Text-book of Assaying: For the Use of Those Connected with Mines. If danger of more carbonic acid being absorbed from the air is feared, and always in very accurate analysis, a potassa tube may be connected to the pipette before drawing the air through. Scientific American Supplement, No. 324, March 18, 1882 Prince Zaleski had listened as I read aloud, lying back on his Moorish couch and breathing slowly from his lips a heavy reddish vapour, which he imbibed from a very small, carved, bismuth pipette. Prince Zaleski Then run in the permanganate solution from a pipette or burette to determine roughly the amount required. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Take a fresh sterile pipette and transfer 0.1 c.c. of the mixture from No. I to No. II and mix thoroughly. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The pipette is next held over the vessel into which the 100 c.c. are to be put, and the liquid allowed to run out. A Text-book of Assaying: For the Use of Those Connected with Mines. Then he opened a drawer and from a number of capillary pipettes selected a plain capillary tube of glass. The Treasure-Train On Tuesday he was sucking up the mucus through a pipette from a boy with diphtheria. The Wife, and other stories Measure off 25 cc. of this semi-solution in a measuring flask, or pipette, observing the precaution that the liquid removed shall contain approximately its proportion of suspended matter. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Materials required: Blood pipette containing sample of specific serum after centrifugalisation. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Ten c.c. pipettes graduated into tenths of a cubic centimetre are very useful: those are best in which the graduation stops short of the bottom. A Text-book of Assaying: For the Use of Those Connected with Mines. Having aspirated nine equal volumes of saline into this second pipette, now take up one similar volume of the fluid in the "10 per cent. tube." The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The Macroscopical Reaction: Sterile graduated capillary pipettes to contain 90 c. mm. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Empty the flask or pipette into a beaker and wash it out. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Inoculate the gelatine-agar tubes with the following quantities of the sample by the help of a sterile pipette graduated to hundredths of a cubic centimetre—viz., The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. It consists of a small retort or evaporating vessel made out of a pipette of 200 c.c. capacity. A Text-book of Assaying: For the Use of Those Connected with Mines. Place the pipettes in a vertical position, in a beaker, in the incubator at 37°C., for one or two hours. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Rectangular glass box or tray to hold pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Aspirate some of the inoculated media into capillary pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove the solution of gelatine from the interior of the celloidin case with a pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The flask is closed with a rubber cork perforated to carry a 20 c.c. pipette and a bulb exit tube. A Text-book of Assaying: For the Use of Those Connected with Mines. Centrifugalise thoroughly, pipette off the supernatant fluid; fill the tube with sterile water and distribute the deposit evenly throughout the fluid. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Centrifugalise again, pipette off the supernatant fluid; fill the tube with sterile water; distribute the deposit evenly throughout the fluid, and transfer the suspension to a litre flask. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. By means of a pipette drop about 1 c.c. of pyrogallic acid 10 per cent. aqueous solution on to the plug. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Introduce the inoculum in the form of an emulsion by means of another pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The flask containing the substance is corked, and the greater part of the soda solution is run in from the pipette. A Text-book of Assaying: For the Use of Those Connected with Mines. With another pipette run in an equal quantity of the caustic soda solution. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Raise the cover of the Petri dish very slightly, insert the extremity of the capillary pipette, and deposit the blood on the centre of the agar surface. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. By means of a sterile pipette run 5 c.c. of the cultivation into each of three tubes of litmus milk. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. With another sterile pipette run one cubic centimetre of sterile saline solution through the catheter to wash out the last traces of the inoculum. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The small flask is fitted with a rubber-stopper perforated with two holes, through one of which passes the tube of a pipette holding 25 or 30 c.c. A Text-book of Assaying: For the Use of Those Connected with Mines. Nessler reagent to each glass by means of a clean pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove the cotton-wool plug from the tube, and run in 1 c.c. pure concentrated sulphuric acid down the side of the tube by means of a sterile pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Transfer the washed cells to a sterile capsule by means of a sterile pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Make a scratch with the glass cutting knife on the blood pipette above the upper level of the clear serum, and snap off and discard the empty portion of the tube. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Fill the pipette with dilute acid, close the clamp, and cork the flask. A Text-book of Assaying: For the Use of Those Connected with Mines. Pipette off the clear serum, and fill in quantities of 1 c.c., into small glass ampoules or pipettes, and hermetically seal in the blowpipe flame, care being taken to avoid scorching the serum. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Insert the point of the pipette into the open end of the catheter and allow the fluid to run down into the stomach. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove the pipette and drop it into a jar of lysol. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove 1 c.c. milk from one of the bottles by means of a sterile pipette and add it to the bouillon in capsule I; mix thoroughly by repeatedly filling and emptying the pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. There are now nine equal volumes of normal saline in the pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Eject the contents of this pipette into the second tube marked 1 per cent. and mix thoroughly as before. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Collect specimens of pus or other exudation in capillary pipettes for subsequent examination. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Inoculate each of the bouillon tubes with 0.1 c.c. of the diluted cultivation by means of a sterile graduated pipette and incubate under optimum conditions. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Drop the infected pipette into a jar of lysol solution. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Snap off the sealed end of the pipette with a pair of sterile forceps. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove the point of the pipette from the secretion, allow the fluid to run a short distance up the capillary stem and seal the point of the pipette in the flame. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. When ready to examine the morbid material snap off the sealed end of the pipette with sterile forceps and eject the contents of the pipette into a sterile capsule. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Fill the 10 c.c. bulb pipette with water; insert its point into the rubber tubing on the long tube b as far as the screw clamp. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Open the case containing the pipettes, grasp one by the plugged end, remove it from the case, and replace the lid of the latter. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove 0.1 c.c. of the emulsion in the first capsule by means of a sterile graduated pipette and transfer it to the second capsule and mix thoroughly. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. With a sterile 10 c.c. graduated pipette transfer 1 c.c. citrated blood from the Erlenmeyer flask to each tube of liquefied agar. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Seal both ends of each pipette in the blowpipe flame. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. To use the sac, remove the plug from the glass tubing, partly fill the sac with cultivation to be inoculated, by means of a sterile capillary pipette, and replug the tubing. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Pass the entire length of the pipette twice or thrice through the flame of the Bunsen burner. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Take another similarly prepared pipette and aspirate into it equal volumes of washed cells, bacterial emulsion and pooled serum. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Remove all but the last one or two c.c. of separated milk from each tube, by means of sterile pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Take a sterile 1 c.c. pipette from the case, pick up a sterile rubber washer with forceps and push the point of the pipette into the central hole. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Raise the tube with the left hand and shake it to mix germ and germicide, whilst returning the delivery pipette in the right hand. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The blood will now enter the pipette at first by capillarity; afterward gravity will also come into play and the pipette can be two-thirds filled without difficulty. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Repeat the process with tubes B, C, D and E; then drop the infected delivery pipette in the lysol jar. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Touch the point of the pipette on the inner wall of the tube, and allow any excess of fluid to escape, only retaining 0.1 c.c. in the pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Blow off the acetic acid by the aid of a pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The following description of the manufacture of a 5 c. mm. pipette will serve to show how the small automatic pipettes are calibrated. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. When the sealed ends are cold and the blood has clotted, place the pipette on the centrifuge, clean end downward; counterpoise and centrifugalise thoroughly. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Select a pipette the capillary portion of which is fairly roomy in bore and possesses regular even walls, and remove the cotton-wool plug from the open end. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Break the capillary portion off so as to leave a covering tube similar to that already used for the smaller graduated pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Plunge infected pipettes immediately after use into tall glass cylinders containing a 2 per cent. solution of lysol, and allow them to remain therein for some days. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Complete the cleaning as described under "new pipettes." The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. By marking the blood pipette above the level of the serum with the glass cutting knife and snapping the tube at that point, the blood-serum becomes readily accessible for testing purposes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. When all the water has been aspirated through the pipette into the filter flask, fill the beaker with rectified spirit and when this is exhausted refill with ether. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Copper cylinders and large test-tubes intended for the reception of pipettes are prepared in a similar manner, in order to protect the points of these articles from injury. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. To the side tubulure of the filter flask attach a 20 cm. length of rubber pressure tubing having a calibre sufficiently large to admit the ends of the pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Allow the mixture to stand 24 hours, centrifugalise thoroughly, pipette off the supernatant liquid to a clean bottle and then add a crystal of thymol or one drop of formalin as a preservative. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Dilution of the Specific Serum: Apparatus required: Sterile graduated capillary pipettes to contain 10 c. mm. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The rapid cooling of the air in the clean end of the pipette creates a negative pressure, and the blood is sucked back into the pipette, leaving the soiled end free from blood. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. At the expiration of the incubation time remove the pipettes from the incubator. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Treat the contents of the control pipette in similar fashion. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Plunge the open point of a capillary pipette through the seared area into the ventricle and fill with blood. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Now pass the point of the pipette into the blood tube and dip the open end below the surface of the serum. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. All disused cover-glasses, slides, and pipettes after use in handling infectious material, etc., must be placed in 2 per cent. lysol solution. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Place the pipettes in a convenient receptacle, filled with water to which soap powder has been added. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Take a piece of 5 mm. bore glass tubing and draw it out as if making an ordinary Pasteur pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Warm the pipette in the gas flame so as to melt the sealing wax and make an air-tight joint. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Mix the one volume of serum with the nine volumes of saline solution very thoroughly by repeatedly drawing up the whole of the fluid into the pipette and driving it out again into the test-tube. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Rinse the pipettes in running water and drain. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Run rectified spirits through the pipette and drain as completely as possible. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Attach each pipette in turn to the rubber tube of the foot bellows, or blowpipe air-blast, and blow air through the pipette until the interior is dry. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. For sterilisation and storage each pipette is placed inside a test-tube, resting on a wad of cotton-wool, and the tube plugged in the ordinary manner. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Now take a clean pipette and proceed precisely as before, 4 to 10. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Each variety should be sterilised and stored in a separate cylindrical copper case some 36 by 6 cm., with "pull-off" lid, upon which is stamped, in plain figures, the capacity of the contained pipettes. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Thus to make a throttle pipette to measure 100 c. mm.: The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. A loose plug of cotton-wool in the open mouth completes the capillary pipette. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Snap off the remainder of the capillary tube from the broad upper portion of the pipette which is now destined to form the covering tube or air chamber, or what we may term the "barrel." The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. |
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