Determination of impurity arsenic in high-purity sulfur by electrothermal atomic-absorption spectrometry with the use of solvent extraction

被引：10

作者：

Malyshev, AY ^{[1
]}

Pimenov, VG ^{[1
]}

Zaitseva, EA ^{[1
]}

Bulanov, AD ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Pur Subst, Nizhnii Novgorod 603600, Russia

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 55卷 / 12期

关键词：

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

D O I：

10.1023/A:1026619221273

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A procedure was developed for determining impurity arsenic in high-purity sulfur with a detection limit of 1 x 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：3

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