New reagent for indirect spectrophotometric red-ox determination of osmium (VI)

被引：4

作者：

Kormosh, Zholt ^{[1
]}

Korolchuk, Svitlana ^{[1
]}

机构：

[1] Volyn Natl Univ, Dept Analyt Chem, UA-43021 Lutsk, Ukraine

来源：

CHINESE CHEMICAL LETTERS | 2008年 / 19卷 / 06期

关键词：

Osmium; Determination; Spectrophotometry;

D O I：

10.1016/j.cclet.2008.04.026

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A highly sensitive indirect spectrophotometric red-ox method for the determination of osmium is reported. The method is based on the oxidation of iodide by osmium (VI) and the spectrophotometric detection of the liberated iodine in the form of complex anion and ion associate with 2-(4-diethylaminostyryl)-1,3,3-trimethyl-6-nitro-3H-indolium chloride reagent. The appropriate reaction conditions have been established. The molar absorptivity is (1.6-5.6) x 10(4) L mol(-1) cm(-1). Beer's law holds for the concentration range of 0.5-11.4 mu g mL(-1) of Os(VI). (C) 2008 Zholt Kormosh. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：716 / 719

页数：4

共 6 条

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