Spectrophotometric determination of bismuth(Ⅱ) after separation by coprecipitation of its 2-mercaptobenzothiazole complex with naphthalene
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概要
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A method is described for the spectrophotometric determinationof trace amounts of bismuth(Ⅱ) after separation by coprecipitation ofits 2-mercaptobenzothiazole complex with naphthalene. 2-mercaptobenzothiazolereacts with bismuth(Ⅱ) to form a water-insoluble complex,which is easily coprecipitated with micro-crystalline naphthalene andthe resulting mixture of the complex and naphthalene is dissolved inDMF. The absorbance of the solution is measured at 394 nm to determinethe trace amounts of bismuth(Ⅱ). The various factors such as pH,amounts of reagent and naphthalene, shaking time, standing time anddiverse ions are studied.
- 福井大学工学部の論文
福井大学工学部 | 論文
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