DETERMINATION OF COPPER IN HUMAN PLASMA BY STRIPPING POTENTIOMETRY ON A MERCURY FILM ELECTRODE IN ETHYLENEDIAMINE MEDIUM

被引：12

作者：

GIL, EP ^{[1
]}

CARRA, RMGM ^{[1
]}

MISIEGO, AS ^{[1
]}

机构：

[1] UNIV EXTREMADURA,DEPT QUIM ANALIT & ELECTROQUIM,E-06071 BADAJOZ,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 315卷 / 1-2期

关键词：

POTENTIOMETRY; COPPER; PLASMA;

D O I：

10.1016/0003-2670(95)00288-B

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of ethylenediamine improves the determination of copper by potentiometric stripping analysis on a mercury film electrode, with respect to the usual determination method in acidic medium. The influence of chemical and methodological parameters is discussed, and the reliability of the method is checked with certified reference materials. Influence of the acid digestion protocol in open and high pressure closed vessels is investigated. The method developed has been applied to the measurement of the copper level in mineralized human plasma samples. The results have been compared with those obtained by electrothermal atomic absorption spectroscopy in a graphite furnace.

引用

页码：69 / 76

页数：8

共 26 条

[1] MULTIELEMENT DETERMINATION IN BIOLOGICAL-MATERIALS BY DIFFERENTIAL PULSE VOLTAMMETRY [J].

ADELOJU, SB ;

BOND, AM ;

BRIGGS, MH .

ANALYTICAL CHEMISTRY, 1985, 57 (07) :1386-1390

[2] BEHAVIOR AND CALIBRATION OF THE COPPER(II) ION-SELECTIVE ELECTRODE IN HIGH CHLORIDE MEDIA AND MARINE WATERS [J].

BELLI, SL ;

ZIRINO, A .

ANALYTICAL CHEMISTRY, 1993, 65 (19) :2583-2589

[3]

HUNT SM, 1990, ADV NUTR HUMAN METAB, P264

[4] POTENTIOMETRIC STRIPPING ANALYSIS [J].

JAGNER, D ;

GRANELI, A .

ANALYTICA CHIMICA ACTA, 1976, 83 (MAY) :19-26

[5] POTENTIOMETRIC STRIPPING ANALYSIS IN NON-DEAERATED SAMPLES [J].

JAGNER, D .

ANALYTICAL CHEMISTRY, 1979, 51 (03) :342-345

[6] EFFECT OF ETHYLENEDIAMINE ON THE ANODIC-STRIPPING VOLTAMMETRIC DETERMINATION OF HEAVY-METALS IN THE PRESENCE OF HUMIC-ACID [J].

LABUDA, J ;

SAUR, D ;

NEEB, R .

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1994, 349 (04) :294-297

[7]

LINDER MC, 1981, JNCI-J NATL CANCER I, V67, P263

[8] COPPER REGULATION OF CERULOPLASMIN IN COPPER-DEFICIENT RATS [J].

LINDER, MC ;

HOULE, PA ;

ISAACS, E ;

MOOR, JR ;

SCOTT, LE .

ENZYME, 1979, 24 (01) :23-35

[9] CLEAVAGE OF DEOXYRIBONUCLEIC-ACID BY THE 1,10-PHENANTHROLINE-CUPROUS COMPLEX - HYDROGEN-PEROXIDE REQUIREMENT AND PRIMARY AND SECONDARY STRUCTURE SPECIFICITY [J].

MARSHALL, LE ;

GRAHAM, DR ;

REICH, KA ;

SIGMAN, DS .

BIOCHEMISTRY, 1981, 20 (02) :244-250

[10]

MCAUSLAN BR, 1990, CSIRO S IMPORTANCE C

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