ELECTROCHEMICAL DETERMINATION OF IRON IN YBA2(CU1-XFEX)3O7 SUPERCONDUCTING COMPOUNDS

被引：5

作者：

BOUTAKHRIT, K

ELKASMI, A

KAUFFMANN, JM

DELTOUR, R

MEHBOD, M

MARVIN, CA

机构：

[1] UNIV LIBRE BRUXELLES,INST PHARM,CP 205,6 BLVD TRIOMPHE,B-1050 BRUSSELS,BELGIUM

[2] UNIV LIBRE BRUXELLES,FAC SCI,SERV PHYS SOLIDE,B-1050 BRUSSELS,BELGIUM

[3] BIOANALYT SYST EUROPE,B-2500 LIER,BELGIUM

来源：

ELECTROANALYSIS | 1993年 / 5卷 / 9-10期

关键词：

SUPERCONDUCTORS; IRON; PULSE POLAROGRAPHY;

D O I：

10.1002/elan.1140050924

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical determination of iron in doped YBaCuO superconducting compounds has been investigated by differential pulse polarography (SMDE) and by differential pulse voltammetry using a glassy carbon electrode. A well-defined peak for iron was observed at -0.15 V (vs. Ag-AgCl) reference electrode in sodium citrate/EDTANa2H2 pH 6. The electrochemical results have been validated by spectroscopic procedures, including atomic absorption and energy dispersion X-ray spectroscopy. The differential pulse polarography using the standard addition method for peak validation has been found to be most appropriate.

引用

页码：877 / 882

页数：6

共 22 条

[1] ELECTROCHEMISTRY OF YBA2CU3O7-DELTA ABOVE TC AND RF DISSIPATION BELOW TC [J].

ACRIVOS, JV ;

BUSTILLO, C ;

LEI, MC ;

PTAK, D .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1990, 184 :273-277

[2]

BOKHOLT M, 1992, PHYSICA C, V198, P33

[3] ELECTROCHEMISTRY AT HIGH-TC SUPERCONDUCTORS IN THEIR NORMAL STATE [J].

FLEISCHER, NA ;

MANASSEN, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (12) :3174-3175

[4]

KRAITSBERG AM, 1991, SVERKHPROVODIMOST FI, V4, P414

[5]

LACROIX Y, 1962, ANAL CHIMIQUE INTERP

[6] THE GROWTH OF ZN-DOPED YBCO SINGLE-CRYSTALS [J].

LIN, CT ;

LI, SX ;

MACKENZIE, A ;

ZHOU, W ;

HUNNEYBALL, PD ;

LIANG, WY .

PHYSICA C, 1992, 193 (1-2) :129-136

[7] ELECTROCHEMISTRY AT YBA2CU3O7 SUPERCONDUCTOR ELECTRODES AT TEMPERATURES ABOVE TC [J].

MCDEVITT, JT ;

LONGMIRE, M ;

GOLLMAR, R ;

JERNIGAN, JC ;

DALTON, EF ;

MCCARLEY, R ;

MURRAY, RW ;

LITTLE, WA ;

YEE, GT ;

HOLCOMB, MJ ;

HUTCHINSON, JE ;

COLLMAN, JP .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 243 (02) :465-474

[8] FLUID ELECTROLYTE-SOLUTIONS FOR ELECTROCHEMISTRY AT NEAR LIQUID-NITROGEN TEMPERATURES [J].

MCDEVITT, JT ;

CHING, S ;

SULLIVAN, M ;

MURRAY, RW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (12) :4528-4529

[9] INFLUENCE OF FE IMPURITIES ON THE Y-BA-CU-O SUPERCONDUCTING SYSTEM [J].

MEHBOD, M ;

WYDER, P ;

DELTOUR, R ;

DUVIGNEAUD, P ;

NAESSENS, G .

PHYSICAL REVIEW B, 1987, 36 (16) :8819-8822

[10] MICROSTRUCTURAL STUDY OF YBACUO IN THE PRESENCE OF IMPURITIES [J].

MEHBOD, M ;

BIBERACHER, W ;

JANSEN, AGM ;

WYDER, P ;

DUVIGNEAUD, PH ;

DELTOUR, R .

JOURNAL OF THE LESS-COMMON METALS, 1989, 150 (1-2) :147-152

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