DESIGN AND CHARACTERIZATION OF FLOW-THROUGH COULOMETRIC CELLS WITH POROUS WORKING ELECTRODES MADE OF CRUSHED VITREOUS CARBON

被引：32

作者：

BEINROHR, E ^{[1
]}

NEMETH, M ^{[1
]}

TSCHOPEL, P ^{[1
]}

TOLG, G ^{[1
]}

机构：

[1] SLOVAK UNIV TECHNOL BRATISLAVA, DEPT ANALYT CHEM, CS-81237 BRATISLAVA, CZECHOSLOVAKIA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 343卷 / 07期

关键词：

D O I：

10.1007/BF00324817

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Three types of flow-through, three-electrode cells with porous working electrodes made of crushed vitreous carbon were tested. The electrochemical properties of the cells were studied by hydrodynamic and cyclic voltammetry using potassium ferrocyanide test solutions. Depending on the volume of the porous working electrode, Nernstian behaviour and electrochemical yields up to 100% were observed for flow rates 1 to 7 ml/min. In the stopped-flow regime the cells exhibit thin-layer cell properties. The utility of the cells is demonstrated for on-line coulometric detection, continuous removal of impurities and dissolved oxygen and for anodic stripping coulometry of trace copper.

引用

页码：566 / 575

页数：10

共 35 条

[1] Bard A., 1980, ELECTROCHEMICAL METH
[2] DETERMINATION OF HEAVY-METALS IN SEAWATER BY ATOMIC-ABSORPTION SPECTROMETRY AFTER ELECTRODEPOSITION ON PYROLYTIC GRAPHITE-COATED TUBES
BATLEY, GE
[J]. ANALYTICAL CHEMISTRY, 1977, 49 (13) : 2031 - 2035
[3] ELECTROLYTICAL MICROCELL FOR ONLINE PRECONCENTRATION OF TRACE-METALS IN FLOW SYSTEMS
BEINROHR, E
[J]. FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1990, 338 (06): : 735 - 737
[4] CONTINUOUS QUANTITATIVE ELECTROLYSIS
BLAEDEL, WJ
STROHL, JH
[J]. ANALYTICAL CHEMISTRY, 1964, 36 (07) : 1245 - &
[5] ANODIC-STRIPPING VOLTAMMETRY AT A RETICULATED MERCURY VITREOUS CARBON ELECTRODE
BLAEDEL, WJ
WANG, J
[J]. ANALYTICAL CHEMISTRY, 1979, 51 (11) : 1724 - 1728
[6] FLOW ELECTROLYSIS ON A RETICULATED VITREOUS CARBON ELECTRODE
BLAEDEL, WJ
WANG, J
[J]. ANALYTICAL CHEMISTRY, 1979, 51 (07) : 799 - 802
[7] ELECTROCHEMICAL DETECTOR BASED ON A RETICULATED VITREOUS CARBON WORKING ELECTRODE FOR LIQUID-CHROMATOGRAPHY AND FLOW-INJECTION ANALYSIS
CURRAN, DJ
TOUGAS, TP
[J]. ANALYTICAL CHEMISTRY, 1984, 56 (04) : 672 - 678
[8] ELECTROCHEMICAL EVIDENCE FOR STRUCTURE OF VITREOUS CARBON
DODSON, A
JENNINGS, VJ
[J]. NATURE-PHYSICAL SCIENCE, 1972, 240 (97): : 15 - &
[9] FAHIDY TZ, 1990, ANAL CHIM ACTA, V232, P401
[10] AN ELECTROCHEMICAL SCRUBBER FOR THE ELIMINATION OF ELUENT BACKGROUND EFFECTS IN POLAROGRAPHIC FLOW-THROUGH DETECTION
HANEKAMP, HB
VOOGT, WH
BOS, P
FREI, RW
[J]. ANALYTICA CHIMICA ACTA, 1980, 118 (01) : 81 - 86

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