Determination of Impurity Arsenic in High-Purity Sulfur by Electrothermal Atomic-Absorption Spectrometry with the Use of Solvent Extraction

被引：0

作者：

A. Yu. Malyshev

V. G. Pimenov

E. A. Zaitseva

A. D. Bulanov

机构：

[1] Russian Academy of Sciences,Institute of High

来源：

Journal of Analytical Chemistry | 2000年 / 55卷

关键词：

Sulfur; Analytical Chemistry; Arsenic; Toluene; Detection Limit;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A procedure was developed for determining impurity arsenic in high-purity sulfur with a detection limit of 1 × 10–7 wt %. The samples of sulfur to be studied were dissolved in nitric acid in an autoclave, and then the arsenic impurity was extracted with toluene and back-extracted with distilled water. Arsenic was determined in the back-extract by electrothermal atomic-absorption spectrometry.

引用

页码：1170 / 1172

页数：2

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