Analytical separation of antimony(III) from bismuth(III), lead(II), gallium(III), thallium(III), tellurium(IV) and tin(IV) with cyanex 302

被引：1

作者：

Vartak, SV ^{[1
]}

Gaudh, JS ^{[1
]}

Shinde, VM ^{[1
]}

机构：

[1] INST SCI,ANALYT LAB,MUMBAI 400032,INDIA

来源：

MIKROCHIMICA ACTA | 1997年 / 127卷 / 1-2期

关键词：

antimony(III); separation; cyanex; 302; solvent extraction; spectrophotometry;

D O I：

10.1007/BF01243161

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method is proposed for the separation of antimony(III) (100-400 mu g) from bismuth(III), lead(II), gallium(III), thallium(III), tellurium(IV) and tin(IV) from an aqueous solution of pH 0.5-1.5 using 8x10(-3)-1 x 10(-2) mol dm(-3) cyanex 302 dissolved in toluene as an extractant. The antimony is stripped from the cyanex phase with water and determined spectro-photometrically with iodide. Various experimental parameters are optimized and the probable 1:3 stoichiometry of the extracted species is evaluated. The method is applicable to the analysis of alloys and pharmaceutical samples. The separation and determination take only 20 min.

引用

页码：41 / 44

页数：4

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