DETERMINATION OF TRACE AMOUNTS OF CHROMIUM(VI) IN WATER BY ELECTROCHEMICAL METHODS

被引：72

作者：

ELLEOUET, C

QUENTEL, F

MADEC, C

机构：

[1] URA CNRS 322, Université de Bretagne Occidentale, Laboratoire de Chimie Analytique, 29287 Brest Cedex

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 257卷 / 02期

关键词：

DIFFERENTIAL PULSE VOLTAMMETRY; CHROMIUM; WATERS;

D O I：

10.1016/0003-2670(92)85183-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensitive procedure for the determination of chromium(VI) is described. A chelate of chromium with an organic ligand is adsorbed on a hanging mercury drop electrode and the reduction current of the accumulated chelate is measured by differential-pulse voltammetry. The effects of various parameters (pH, ligand concentration, potential and collection time) on the response are discussed. Possible interferences by trace metals and organic matter are considered.

引用

页码：301 / 308

页数：8

共 17 条

[1] [Anonymous], DITHIZONE
[2] Bard A. J, 1985, STANDARD POTENTIALS
[3] BERMAN E, 1980, TOXIC METALS THEIR A
[4] Cazeneuve MP, 1900, B SOC CHIM FR, V23, P701
[5] DETERMINATION OF CHROMIUM(VI) BY DIFFERENTIAL-PULSE POLAROGRAPHY WITH A SODIUM-FLUORIDE SUPPORTING ELECTROLYTE
COX, JA
WEST, JL
KULESZA, PJ
[J]. ANALYST, 1984, 109 (07) : 927 - 930
[6] REDUCTION OF CHROMIUM(VI) AT SUB-MUG 1-1 LEVELS BY FULVIC-ACID
ECKERT, JM
STEWART, JJ
WAITE, TD
SZYMCZAK, R
WILLIAMS, KL
[J]. ANALYTICA CHIMICA ACTA, 1990, 236 (02) : 357 - 362
[7] FLORENCE TM, 1980, CRC CR REV ANAL CHEM, V9, P219
[8] INTERPRETATION OF POLAROGRAPHIC BEHAVIOUR OF METAL-SOLOCHROME VIOLET RS COMPLEXES
FLORENCE, TM
BELEW, WL
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1969, 21 (01): : 157 - &
[9] GINZBURG VG, 1987, ZH ANAL KHIM, V42, P687
[10] TRACE DETERMINATION OF CHROMIUM IN VARIOUS WATER TYPES BY ADSORPTION DIFFERENTIAL PULSE VOLTAMMETRY
GOLIMOWSKI, J
VALENTA, P
NURNBERG, HW
[J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1985, 322 (03): : 315 - 322

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