SIMULTANEOUS PHOTOMETRIC FLOW-INJECTION DETERMINATION OF SULFIDE, POLYSULFIDE, SULFITE, THIOSULFATE, AND SULFATE

被引：62

作者：

SONNE, K ^{[1
]}

DASGUPTA, PK ^{[1
]}

机构：

[1] TEXAS TECH UNIV,DEPT CHEM & BIOCHEM,LUBBOCK,TX 79409

来源：

ANALYTICAL CHEMISTRY | 1991年 / 63卷 / 05期

关键词：

D O I：

10.1021/ac00005a008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The title determination scheme has been developed for application to aqueous samples of importance to the petroleum industry. Sulfur(-II) is determined by acidification to produce H2S and gas diffusion into alkaline Na2[Fe(CN)5NO]; in the same manifold, sulfur produced upon acidification from poly-sulfides is measured turbidimetrically and gives a measure of [S(0)]. Sulfite is measured by acidification to produce SO2, gas diffusion, and bleaching of a pararosaniline receptor. Thiosulfate is measured by dialyzing the sample after on-line tretment with Zn2+ and HCHO and bleaching KMnO4 with the dialyzate. Sulfate is measured by the turbidimetric BaSO4 method; the fouling of optical windows is prevented by the use of a sheath-flow cuvette.

引用

页码：427 / 432

页数：6

共 33 条

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