VOLTAMMETRIC DETERMINATION OF GOLD WITH A RHODAMINE B-MODIFIED CARBON PASTE ELECTRODE

被引：14

作者：

KOLBL, G

KALCHER, K

VOULGAROPOULOS, A

机构：

[1] GRAZ UNIV,INST ANALYT CHEM,UNIV PL 1,A-8010 GRAZ,AUSTRIA

[2] UNIV THESSALONIKI,DEPT CHEM,ANALYT CHEM LAB,GR-64006 SALONIKA,GREECE

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 342卷 / 1-2期

关键词：

D O I：

10.1007/BF00321697

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The voltammetric behaviour of gold on carbon paste electrodes chemically modified with Rhodamine B by means of electrostatical binding was studied. The dye was attached to the electrode material with hexane sulphonic acid. Gold was determined by differential pulse voltammetry after preconcentration under open circuit conditions and medium exchange. Thus, 5-mu-g Au/l could be analyzed. Linearities between signal response and concentration were found for concentrations up to 10 mg/l when measuring in the differential pulse mode. Parameters like composition of the paste and of the analyte solution as well as interferences with other ions were investigated.

引用

页码：83 / 86

页数：4

共 11 条

[1] THE APPLICATION OF CHEMICALLY MODIFIED ELECTRODES IN ANALYTICAL-CHEMISTRY [J].

DONG, SJ ;

WANG, YD .

ELECTROANALYSIS, 1989, 1 (02) :99-106

[2]

EEGRIWE E, 1927, Z ANAL CHEM, V70, P400

[3] IMPROVED DATA-PROCESSING FOR ELECTROANALYTICAL MEASUREMENTS [J].

KALCHER, K ;

JORDE, C .

COMPUTERS & CHEMISTRY, 1986, 10 (03) :201-218

[4] VOLTAMMETRIC BEHAVIOR OF GOLD AT A DITHIZONE-MODIFIED CARBON-PASTE ELECTRODE [J].

KALCHER, K .

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 325 (02) :181-185

[5] VOLTAMMETRIC DETERMINATION OF TRACE AMOUNTS OF GOLD WITH A CHEMICALLY MODIFIED CARBON PASTE ELECTRODE [J].

KALCHER, K .

ANALYTICA CHIMICA ACTA, 1985, 177 :175-182

[6] A COMPACT ELECTRODE ASSEMBLY FOR VOLTAMMETRIC MEASUREMENTS WITH SOLID ELECTRODES [J].

KALCHER, K .

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 323 (03) :238-240

[7] CHEMICALLY MODIFIED CARBON PASTE ELECTRODES IN VOLTAMMETRIC ANALYSIS [J].

KALCHER, K .

ELECTROANALYSIS, 1990, 2 (06) :419-433

[8] EXTRACTIVE PRECONCENTRATION OF GOLD WITH CARBON PASTE ELECTRODES MODIFIED WITH ORGANOPHOSPHOROUS COMPOUNDS [J].

KALCHER, K ;

GRESCHONIG, H ;

PIETSCH, R .

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1987, 327 (5-6) :513-517

[9]

KUZNETZOV VI, 1946, CR HEBD ACAD SCI, V52, P231

[10]

MURRAY RW, 1984, ELECTROANALYTICAL A, V13

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