SEPARATION AND DETERMINATION OF THIOSULFATE, SULFITE AND SULFIDE IN MIXTURES

被引：16

作者：

KOH, T

OKABE, K

MIURA, Y

机构：

来源：

ANALYST | 1993年 / 118卷 / 06期

关键词：

THIOSULFATE SULFITE SULFIDE MIXTURE; SULFUR-SPECIES MIXTURE SEPARATION; WATER ANALYSIS; THIOCYANATE FORMATION; SPECTROPHOTOMETRY;

D O I：

10.1039/an9931800669

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The proposed method consists of three procedures: an excess of iodine for its reactions with both the thiosulfate separated in Procedure I and the sulfur dioxide evolved in Procedure II, and the thiocyanate formed from hydrogen sulfide in Procedure III are determined by spectrophotometry, respectively. Procedure I can be applied to the determination of up to 4.8 x 10(-4) Mol l-1 thiosulfate in the presence of sulfite and sulfide, Procedure II for up to 2.4 x 10(-4) Mol l-1 sulfite in the presence of thiosulfate and sulfide, and Procedure III for up to 6 x 10(-4) Mol 1-1 sulfide in the presence of thiosulfate and sulfite. Good recoveries of thiosulfate, sulfite and sulfide added to hot-spring water and lake water samples were achieved by using the proposed method.

引用

页码：669 / 672

页数：4

共 11 条

[1] AUTOMATED-DETERMINATION OF SULFITE BY GAS-PHASE MOLECULAR ABSORPTION SPECTROMETRY [J].