Stepwise injection photometric determination of ascorbic acid in drugs |
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| Authors: | A. V. Bulatov U. M. Strashnova A. B. Vishnikin G. M. Alekseeva T. D. Sineva A. L. Moskvin L. N. Moskvin |
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| Affiliation: | 1.Department of Chemistry,St. Petersburg State University,St. Petersburg,Russia;2.Dnepropetrovsk National University,Dnepropetrovsk,Ukraine;3.St. Petersburg State Chemical Pharmaceutical Academy,St. Petersburg,Russia |
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| Abstract: | A procedure is developed for the photometric determination of ascorbic acid in drug preparations. It is based on the rapid and highly selective reaction of ascorbic acid with a novel reagent, the guanidinium salt of 1-bismuto-11-molybdophosphoric heteropolyacid. The detection limit for ascorbic acid in stepwise injection analysis makes 15 mg/L, and the duration of single analysis, 5 min. |
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