Flotation-spectrophotometric determination of silver

被引：0
作者：
Ishchenko, NN
Ganago, LI
Ivanova, IF
机构：
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 52卷 / 08期
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A flotation-spectrophotometric method for determination of silver was developed. The method is based on the decomposition of [Fe(CN)(6)](4-) under the action of silver ions followed by the interaction of the [Ag(CN)(2)](-) anionic complex with Crystal Violet (CV). It was found that CV[Ag(CN)(2)] and CV4[Fe(CN)(6)] associates interact to form a complex associate CV[Ag(CN)(2)]. 3CV(4)[Fe(CN)(6)] with Ag : CV = 1 : 13. The molar absorptivity of the associate is 1.4 x 10(-6). A procedure for determining silver in the AgGaS-AgGaSe semiconductor in the process of crystal growth was developed. The determination error is no more than 5%.
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页码：768 / 769
页数：2
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