Flotation-spectrophotometric method for the determination of mercury using iodide and brilliant green

被引：15

作者：

Mathew, L ^{[1
]}

Reddy, MLP ^{[1
]}

Rao, TRRTP ^{[1
]}

Iyer, CSP ^{[1
]}

Damodaran, AD ^{[1
]}

机构：

[1] CSIR,REG RES LAB,TRIVANDRUM 695019,KERALA,INDIA

来源：

MIKROCHIMICA ACTA | 1997年 / 127卷 / 1-2期

关键词：

mercury; flotation spectrometry; paper industry effluents; orthogonal array design; brilliant green;

D O I：

10.1007/BF01243176

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper describes a sensitive spectrophotometric method for the determination of mercury, based on the flotation of a mercury iodide-brilliant green complex with cyclohexane at pH 5 and dissolution of the complex in acetone. The absorbance of the complex is measured at 625 nm. Beer's law is obeyed from 4-500 mu g/l of mercury. The method is highly sensitive (epsilon = 5.96 x 10(5) l mol(-1) cm(-1)) and selective, as it is free from interferences by almost all cations and anions in the presence of EDTA. Furthermore, a two-level orthogonal array design as a chemometric method has been used for optimization of the various parameters involved. The method has been successfully applied to paper industry effluents.

引用

页码：125 / 128

页数：4

共 12 条

[1] STUDIES ON THE SEPARATION OF OSMIUM BY FLOTATION AND SPECTROPHOTOMETRIC DETERMINATION WITH CRYSTAL VIOLET AND MALACHITE GREEN [J].