THE CATALYTIC ADSORPTIVE STRIPPING VOLTAMMETRIC DETERMINATION OF CHROMIUM WITH DTPA AND NITRATE

被引：56

作者：

SCHOLZ, F ^{[1
]}

LANGE, B ^{[1
]}

DRAHEIM, M ^{[1
]}

PELZER, J ^{[1
]}

机构：

[1] INST WASSERWIRTSCH DDR,BERLIN,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1990年 / 338卷 / 05期

关键词：

D O I：

10.1007/BF00324022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The catalytic adsorptive stripping voltammetric determination of chromium using diethylenetriaminepentaacetic acid (DTPA) is only possible when chromium(III) is preliminarily oxidized to chromium(VI) which can be accomplished by UV-irradiation of the oxygen saturated solution at pH 6.0-7.0. A chromium(III)-chromium(VI) speciation can be performed in the range 10-10 mol/l upto 10-6 mol/l employing the coprecipitation of chromium(III) with Al(OH)3. The interference of other metal ions was also studied. © 1990 Springer-Verlag.

引用

页码：627 / 629

页数：3

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