Coulometric titration of disulfides with electrogenerated chlorine

被引：0

作者：

Ciesielski, W ^{[1
]}

Skowron, M ^{[1
]}

机构：

[1] Univ Lodz, Dept Instrument Anal, PL-90236 Lodz, Poland

来源：

CHEMIA ANALITYCZNA | 2005年 / 50卷 / 01期

关键词：

coulometric titration; disuffides; electrogenerated chlorine;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The coulometric titration of some disulfides with anodically generated chlorine using the biamperometric end-point detection is presented. Chlorine breakes the disulfide bond and a sulfonic acid is formed. The range of determination is 0.50-3.75 mu mol for 2,2-dithiodiglycolic acid, 0.375-1.50 mu mol for 3,3'-dithiodipropionic acid, 1.00-2.50 mu mol for cystamine dihydrochloride and 0.50-2.75 mu mol for L-cystine. The titrations were performed in solutions containing 0.5 mol L-1 H2SO4 and various amounts of NaCl. The error for all determinations is below 1%.

引用

页码：47 / 53

页数：7

共 27 条

[1] ESTIMATION OF THIOLS AND DISULPHIDES BY POTENTIOMETRIC TITRATION WITH SILVER NITRATE [J].

CECIL, R ;

MCPHEE, JR .

BIOCHEMICAL JOURNAL, 1955, 59 (02) :234-240

[2] Determination of some thiophosphorus insecticides based on coulometric titration with the anodically generated chlorine: a further insight in the reaction mechanism in aqueous medium [J].

Ciesielski, W ;

Skowron, M ;

Balczewski, P ;

Szadowiak, A .

TALANTA, 2003, 60 (04) :725-732

[3] COULOMETRIC TITRATIONS WITH CHLORINE - TITRATION OF ARSENIC AND USE OF AN AMPEROMETRIC END POINT [J].

FARRINGTON, PS ;

SWIFT, EH .

ANALYTICAL CHEMISTRY, 1950, 22 (07) :889-891

[4]

HIROMU S, 1981, NIPPON KAGAKU KAISHI, V11, P1726

[5] STUDIES ON ANALYTICAL METHODS BY AMPEROMETRIC-TITRATION USING A ROTATING PLATINUM-ELECTRODE .47. SUCCESSIVE DETERMINATION OF L-CYSTEINE AND L-CYSTINE BY AMPEROMETRIC-TITRATION [J].

IKEDA, S ;

SATAKE, H .

ANALYTICA CHIMICA ACTA, 1982, 142 (OCT) :289-292

[6]

INKIN AA, 1973, J ANAL CHEM-USSR+, V28, P2037

[7]

JEDRZEJEWSKI W, 1984, CHEM ANAL-WARSAW, V29, P563

[8]

KALINOWSKI K, 1958, ACTA POL PHARM, V15, P179

[9]

Karandi IV, 1999, J ANAL CHEM+, V54, P753

[10]

LINGANE JJ, 1960, CHEM ELECTROANALYSIS

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