Benzeneacetaldehyde-4-hydroxy-α-oxo-aldoxime as a new analytical reagent for the spectrophotometric determination of cobalt

被引：12

作者：

Jadhav, SB ^{[1
]}

Utekar, SS ^{[1
]}

Kulkarni, AJ ^{[1
]}

Varadarajan, A ^{[1
]}

Malve, SP ^{[1
]}

机构：

[1] Inst Sci, Fac Chem, Mumbai 400032, India

来源：

TALANTA | 1998年 / 46卷 / 06期

关键词：

benzeneacetaldehyde-4-hydroxy-alpha-oxo-aldoxime; cobalt; spectrophotometric determination;

D O I：

10.1016/S0039-9140(98)00013-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Benzeneacetaldehyde-4-hydroxy-alpha-oxo-aldoxime is proposed as a new sensitive and selective reagent for the spectrophotometric determination of cobalt. The reagent reacts with cobalt in the pH range 8.6-9.4 to form a yellow colored 1:3 chelate which is very well extracted in chloroform. Beer's law is obeyed in the concentration range 0.05-1.3 mu g ml(-1) cobalt. The molar absorptivity of the extracted species is 2.746 x 10(4) l mol(-1) cm(-1) at 390 nm. The proposed method is highly sensitive, selective, simple: rapid, accurate and has been satisfactorily applied for the determination of cobalt in synthetic mixtures, pharmaceutical samples, biological samples and alloys. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1425 / 1432

页数：8

共 22 条

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