| 单词 | pyrophosphate |
| 例句 | Phosphorylation is the breakdown of a pyrophosphate molecule which gives phosphate ions. Biology for AP Courses 2022-06-09T00:00:00Z But it was not clear how vitamin B1, or its derivative thiamine pyrophosphate, allowed proteins to expand their chemical repertoire. Ronald Breslow (1931–2017) At equilibrium, forward and backward steps would occur with equal frequency; normally other metabolic processes drive the reaction forward by removing pyrophosphate and supplying the four kinds of nucleoside triphosphate. The Fundamental Physical Limits of Computation 2011-06-01T17:45:02.143Z They give a characteristic pale red precipitate with sodium pyrophosphate, soluble in an excess of the precipitant; they also form precipitates on the addition of platinic chloride and potassium ferrocyanide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Filter; wash the precipitate with dilute ammonia; dry, ignite, and weigh as magnesic pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. In the latter case I simply add five grains of the pyrophosphate to each ounce of malt, and give it thus for a month unknown to the patients. Fat and Blood An Essay on the Treatment of Certain Forms of Neurasthenia and Hysteria The following is one of the best solutions for plating with tin by the battery process:— Potassium pyrophosphate 12 oz. Handbook on Japanning: 2nd Edition For Ironware, Tinware, Wood, Etc. With Sections on Tinplating and Galvanizing It then attaches the new base to the end of the growing RNA strand and releases two of the phosphates into the surrounding solution as a free pyrophosphate ion. The Fundamental Physical Limits of Computation 2011-06-01T17:45:02.143Z The glowed substance is weighed after cooling, and is pyrophosphate of magnesia, from which the magnesia or carbonate of magnesia is calculated stoichiometrically. Scientific American Supplement, No. 821, September 26, 1891 The precipitate is washed with dilute ammonia, dried, ignited, and weighed as pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. For the purpose of gravimetric determination, phosphoric acid is usually precipitated from ammoniacal solutions in the form of magnesium ammonium phosphate which, on ignition, is converted into magnesium pyrophosphate. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes To the filtrate, ammonia and magnesia mixture are added, and the magnesium pyrophosphate separated and weighed with the usual precautions. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The residue contains the magnesia; boil with dilute sulphuric acid, filter, precipitate it with phosphate of soda and ammonia, and weigh as pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. Ten grams of an iron ore gave 12 milligrams of pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. Filter, wash with dilute ammonia, dry, ignite, and weigh as pyrophosphate of magnesia. A Text-book of Assaying: For the Use of Those Connected with Mines. The acid will dissolve magnesium pyrophosphate from the surface of the particles of carbon, which will then burn away. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Allow to stand overnight, filter, wash with dilute ammonia, dry, ignite, and weigh as pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. The filtrate is treated with sodium phosphate, and the magnesia is weighed as pyrophosphate, or titrated with uranium acetate. A Text-book of Assaying: For the Use of Those Connected with Mines. The precipitate is collected, washed with ammonia, ignited, and weighed as pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. Ammonia and sodium phosphate are again added, and the precipitate, after standing, is filtered off, washed with water containing ammonia; it is then dried, ignited and weighed as magnesium pyrophosphate. A Text-book of Assaying: For the Use of Those Connected with Mines. Remember that the pyrophosphate finally obtained is from one fifth of the original sample. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes You have reason to believe that a precipitate which has been weighed as magnetic pyrophosphate contains some arsenate. A Text-book of Assaying: For the Use of Those Connected with Mines. Ten grams of an iron yielded 12 milligrams of pyrophosphate of magnesia. A Text-book of Assaying: For the Use of Those Connected with Mines. |
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