Electrically heated cylindrical microelectrodes. Determination of lead on Pt by cyclic voltammetry and cathodic stripping analysis

被引：56

作者：

Zerihun, T ^{[1
]}

Grundler, P ^{[1
]}

机构：

[1] UNIV ROSTOCK,FACHBEREICH CHEM,D-18055 ROSTOCK,GERMANY

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1996年 / 415卷 / 1-2期

关键词：

lead; platinum; microelectrodes; cyclic voltammetry; cathodic stripping;

D O I：

10.1016/S0022-0728(96)04711-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The experiment involved cathodic stripping analysis of electrodeposited PbO2 in aqueous solutions of Pb2+ and HClO4 on a vertically arranged cylindrical Pt microelectrode (25 mu m diameter) at increased electrode temperature and free convection. The electrode was continuously heated in-situ using a 100 kHz alternating current during d.c. polarization. The stripping signals at the heated electrode were much better than those obtained at room temperature. Cyclic voltammetry and potentiostatic (anodic) deposition followed by a negative linear potential sweep were used for the deposition and stripping of PbO2.

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收藏

页码：85 / 88

页数：4

相关论文

共 14 条

[1] LEAD DIOXIDE AS SOLVENT ELECTRODE [J].

BECK, F ;

BOHN, H .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1975, 79 (03) :233-244

[2] CYCLIC BEHAVIOR OF LEAD DIOXIDE ELECTRODES IN TETRAFLUORBORATE SOLUTIONS [J].

BECK, F .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1975, 65 (01) :231-243

[3] ELECTROCATALYSIS OF ANODIC OXYGEN-TRANSFER REACTIONS - CHRONOAMPEROMETRIC AND VOLTAMMETRIC STUDIES OF THE NUCLEATION AND ELECTRODEPOSITION OF BETA-LEAD DIOXIDE AT A ROTATED GOLD DISK ELECTRODE IN ACIDIC MEDIA [J].

CHANG, HP ;

JOHNSON, DC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (01) :17-22

[4] ELECTROCATALYSIS OF ANODIC OXYGEN-TRANSFER REACTIONS - DETECTION OF SOLUBLE INTERMEDIATE PRODUCTS DURING ELECTRODEPOSITION AND STRIPPING OF BETA-LEAD DIOXIDE AT A GOLD ELECTRODE [J].

CHANG, HP ;

JOHNSON, DC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (01) :23-27

[5]

FLEISCHMANN M, 1970, T FARADAY SOC, V54, P1370

[6] SIMULTANEOUS JOULE HEATING AND POTENTIAL CYCLING OF CYLINDRICAL MICROELECTRODES [J].

GRUNDLER, P ;

ZERIHUN, T ;

KIRBS, A ;

GRABOW, H .

ANALYTICA CHIMICA ACTA, 1995, 305 (1-3) :232-240

[7] ELECTROCHEMICAL REACTIONS AT PBO2 ELECTRODES .I. PASSIVATION OF BETA-PBO2 IN PERCHLORIC ACID [J].

HAMPSON, NA ;

JONES, PC ;

PHILLIPS, RF .

CANADIAN JOURNAL OF CHEMISTRY, 1967, 45 (18) :2039-&

[8] DETERMINATION OF LEAD AT PARTS PER BILLION LEVEL BY CATHODIC STRIPPING ANALYSIS [J].

KINARD, JT ;

PROPST, RC .

ANALYTICAL CHEMISTRY, 1974, 46 (08) :1106-1109

[9] CATHODIC STRIPPING COULOMETRY OF LEAD [J].

LAITINEN, HA ;

WATKINS, NH .

ANALYTICAL CHEMISTRY, 1975, 47 (08) :1352-1358

[10]

NEEB R, 1969, INVERSE POLAROGRAPHI, P170