Spectrophotometric determination of bismuth after extraction of tetrabutylammonium tetraiodobismuthate(III) with microcrystalline benzophenone

被引：35

作者：

Burns, DT ^{[1
]}

Tungkananuruk, N

Thuwasin, S

机构：

[1] Queens Univ Belfast, Dept Analyt Chem, Belfast BT9 5AG, Antrim, North Ireland

[2] Kasetsart Univ, Dept Chem, Bangkok, Thailand

来源：

ANALYTICA CHIMICA ACTA | 2000年 / 419卷 / 01期

关键词：

spectrophotometry; bismuth; extraction; pharmaceuticals; benzophenone;

D O I：

10.1016/S0003-2670(00)00996-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Bismuth (0-20 mu g ml(-1)) can be determined spectrophotometrically at 485 nm after its adsorptive extraction from dilute sulfuric acid solution as tetrabutylammonium tetraiodobismuthate(III) on microcrystalline benzophenone followed by dissolution of the solid phase in ethyl acetate, The effects of reaction conditions, diverse ions and masking studies are reported, The system has been applied to the determination of bismuth in pharmaceutical samples. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：41 / 44

页数：4

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