Study of the reduction of palladium(II) on a mercury electrode in the presence of dimethylglyoxime

被引：17

作者：

Georgieva, M ^{[1
]}

Pihlar, B ^{[1
]}

机构：

[1] UNIV LJUBLJANA,DEPT CHEM & CHEM TECHNOL,LJUBLJANA 61000,SLOVENIA

来源：

ELECTROANALYSIS | 1996年 / 8卷 / 12期

关键词：

palladium; adsorptive stripping voltammetry; dimethylglyoxime; reduction process;

D O I：

10.1002/elan.1140081216

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorptive behavior of Pd-II ions in the presence of dimethylglyoxime (DMG) was investigated using voltammetric techniques. It was found that the bis-dimethylglyoximato palladium(II) complex is adsorbed strongly between pH 3 and 5 and between the potentials 0 and -0.3V (vs. Ag/AgCl). The peak current is proportional to the Pd-DMG surface concentration, and increases linearly with scan rate (delta logi(p)/delta v = 0.97). The adsorptive stripping response was evaluated with respect to pH, the concentration of the electrolyte, the addition of surfactants and the preconcentration potential. From the results a general scheme for the reduction process is given.

引用

页码：1155 / 1159

页数：5

共 16 条

[1] SIMULTANEOUS DETERMINATION OF PALLADIUM AND NICKEL IN ELECTROPLATING SOLUTIONS BY DIFFERENTIAL-PULSE POLAROGRAPHY [J].

BASU, BJ ;

RAJAGOPALAN, SR .

ANALYST, 1992, 117 (10) :1623-1625

[2]

GEORGIEVA M, 1987, P 10 YUG S EL, P321

[3]

GEORGIEVA M, 1988, THESIS U LJUBLJANA S

[4] ADSORPTIVE STRIPPING VOLTAMMETRY IN TRACE ANALYSIS [J].

KALVODA, R ;

KOPANICA, M .

PURE AND APPLIED CHEMISTRY, 1989, 61 (01) :97-112

[5]

LAVIRON E, 1974, J ELECTROANAL CHEM, V52, P355, DOI 10.1016/S0022-0728(74)80448-1

[6] SQUARE-WAVE VOLTAMMETRY OF AN ADSORBED REACTANT [J].

LOVRIC, M ;

KOMORSKYLOVRIC, S .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 248 (02) :239-253

[7] APPLICATIONS OF ADSORPTIVE STRIPPING VOLTAMMETRY IN THE DETERMINATION OF TRACE AND ULTRATRACE METALS [J].

PANELI, MG ;

VOULGAROPOULOS, A .

ELECTROANALYSIS, 1993, 5 (5-6) :355-373

[8] HIGH-PERFORMANCE ADSORPTIVE CATHODIC STRIPPING VOLTAMMETRY OF NICKEL AND COBALT IN SEAWATER [J].

PEREZPENA, J ;

HERNANDEZBRITO, JJ ;

HERRERAMELIAN, JA ;

COLLADOSANCHEZ, C ;

VAN DEN BERG, CMG .

ELECTROANALYSIS, 1994, 6 (11-12) :1069-1076

[9] ELECTROCHEMICAL REDUCTION OF NI(II) ON THE HANGING MERCURY DROP ELECTRODE IN THE PRESENCE OF DIMETHYLGLYOXIME [J].

PIHLAR, B ;

VALENTA, P ;

NURNBERG, HW .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 214 (1-2) :157-177

[10]

SMITH RM, 1977, CRITICAL STABILITY C, V3, P306

← 1 2 →