YAKUGAKU ZASSHI
Online ISSN : 1347-5231
Print ISSN : 0031-6903
ISSN-L : 0031-6903
キレート滴定による医薬品の定量分析 (第4報)
ビスマス塩類の定量
入谷 信彦田中 共生斎藤 京子
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1964 年 84 巻 11 号 p. 1145-1147

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Comparison was made between chelatometry and gravimetry for the determination of bismuth in pharmaceuticals. A more simpler, rapid, and accurate determination was found to be as follows: The sample taken as a×10-1g. is dissolved in nitric acid, the solution is diluted with water, and its pH is adjusted to 1-3 with sodium acetate. Bi3+ is titrated with standard solution of 0.05M sodium ethylenediaminetetraacetate, with xylenol orange as the indicator. This method seemed to give better results than by the traditional gravimetry.

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