Cr (III) spiked samples
Russian translation: пробы/образцы калибровочного раствора
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| 14:36 Jun 19, 2018 |
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| English to Russian translations [PRO] Science - Chemistry; Chem Sci/Eng / стандартизация | |||||||
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|  Selected response from: Enote Local time: 18:51 | ||||||
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| 5 | образцы с внутренним стандартом |
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| 5 | образцы с добавками (известных количеств) Cr (III) |
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| 3 | пробы/образцы калибровочного раствора Cr (III) |
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| Discussion entries: 2 | |
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Answers
3 hrs confidence: 
| cr (iii) spiked samples пробы/образцы калибровочного раствора Cr (III) Explanation: Для калибровки пиков на хроматограмме Вот процедура его подготовки из BS EN 16318:2013 6.2.20 Cr(III) spiking solution. Use a commercial standard solution with a certified Cr(III) concentration, e.g. 1 000 mg/l Cr(III) traceable to national standards. Observe the manufacturer's expiration date or recommended shelf life. Alternatively, dissolve 512 mg of chromium chloride hexahydrate (6.2.19) in water (6.2.1) in a 100 ml volumetric flask, dilute to the mark with water (6.2.1), close and mix thoroughly. Store the solution in a polypropylene bottle for a maximum period of one year. Before using, determine the Cr concentration of the spiking solution. |
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13 hrs confidence:
| cr (iii) spiked samples образцы с внутренним стандартом Explanation: https://www.multitran.ru/c/m.exe?l1=1&l2=2&s=spiked samples http://chem21.info/info/55170/ -------------------------------------------------- Note added at 13 hrs (2018-06-20 04:14:51 GMT) -------------------------------------------------- It is a calibration method that involves adding an additional amount of the substance of interest to a sample when a one-off or infrequently performed analysis is required. An analyst usually divides the unknown sample into two portions, so that a known amount of the analyte (a spike) can be added to one portion. https://www.chemicool.com/definition/standard_addition.html |
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17 hrs confidence:
| cr (iii) spiked samples образцы с добавками (известных количеств) Cr (III) Explanation: Spike - это в данном случае добавка известного количества трехвалентного хрома для анализа методом "введено-найдено". В данном случае, опять же, это НЕ называется внутренним стандартом (в аналитической химии). Calibration - это градуировка,а не калибровка. Calibration solutions - градуировочные растворы (растворы для построения градуировочного графика). Recovery - степень извлечения (значение "найдено" в анализе методом "введено-найдено"). |
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