Preconcentration and voltammetric determination of palladium (II) at sodium humate modified carbon paste electrodes

被引：22
|
作者：
Sun, QY [1 ]
Wang, CM [1 ]
Li, LX [1 ]
Li, HL [1 ]
机构：
[1] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1999年 / 363卷 / 01期
关键词：
D O I：
10.1007/s002160051150
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A chemically modified carbon paste electrode was prepared by incorporating appropriate amounts of sodium humate(NaA). Palladium(ll) was selectively accumulated in a solution of Britton-Robinson(B-R) buffer (pH 2.8) onto the electrode surface ill open circuit mode. The subsequent electrochemical measurement was carried out by cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) in a supporting electrolyte of 1.0 M HCl. The obtained oxidation currents (I-pa1 and L-pa2) were proportional to the Pd(II) concentration in the range of 4.7 x 10(-6) - 9.4 x 10(-8) M. The developed method was applied to the quantitative determination of palladium in real samples.
引用
收藏
页码：114 / 117
页数：4
相关论文
共 50 条
  • [1] Preconcentration and voltammetric determination of palladium (II) at sodium humate modified carbon paste electrodes
    Qiaoyu Sun
    C. Wang
    Liangxi Li
    Hulin Li
    Fresenius' Journal of Analytical Chemistry, 1999, 363 : 114 - 117
  • [2] Voltammetric behavior and determination of bismuth on sodium humate modified carbon paste electrode
    Wang, CM
    Sun, QY
    Li, HL
    ELECTROANALYSIS, 1997, 9 (08) : 645 - 649
  • [3] Preconcentration and voltammetric determination of indomethacin at carbon paste electrodes
    Radi, A
    ELECTROANALYSIS, 1998, 10 (02) : 103 - 106
  • [4] Preconcentration and voltammetric determination of nitro compounds on carbon-paste electrodes
    Sapel'nikova, S.V.
    Kuz'mina, N.V.
    Majstrenko, V.N.
    Kudasheva, F.Kh.
    Zhurnal Analiticheskoj Khimii, 2002, 57 (05): : 532 - 538
  • [5] Preconcentration and Voltammetric Determination of Nitro Compounds on Carbon-Paste Electrodes
    S. V. Sapel'nikova
    N. V. Kuz'mina
    V. N. Maistrenko
    F. Kh. Kudasheva
    Journal of Analytical Chemistry, 2002, 57 : 443 - 447
  • [6] Preconcentration and voltammetric determination of nitro compounds on carbon-paste electrodes
    Sapel'nikova, SV
    Kuz'mina, NV
    Maistrenko, VN
    Kudasheva, FK
    JOURNAL OF ANALYTICAL CHEMISTRY, 2002, 57 (05) : 443 - 447
  • [7] VOLTAMMETRIC DETERMINATION OF CELIPTIUM WITH CARBON PASTE AND LIPID-MODIFIED CARBON PASTE ELECTRODES
    ARCOS, J
    KAUFFMANN, JM
    PATRIARCHE, GJ
    SANCHEZBATANERO, P
    ANALYTICA CHIMICA ACTA, 1990, 236 (02) : 299 - 305
  • [8] VOLTAMMETRIC DETERMINATION OF BISMUTH WITH CARBON PASTE ELECTRODES MODIFIED WITH ALKYLMERCAPTANS
    KALCHER, K
    FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 325 (02): : 186 - 190
  • [9] PRECONCENTRATION AND DIFFERENTIAL-PULSE VOLTAMMETRIC DETERMINATION OF IRON(II) WITH NAFION 1,10-PHENANTHROLINE-MODIFIED CARBON PASTE ELECTRODES
    ZHIQIANG, G
    PEIBIAO, L
    GUANGQING, W
    ZAOFAN, Z
    ANALYTICA CHIMICA ACTA, 1990, 241 (01) : 137 - 146
  • [10] VOLTAMMETRIC DETERMINATION OF PALLADIUM(II) WITH MODIFIED GRAPHITE-ELECTRODES
    BRAININA, KZ
    TSYMBAL, MV
    TEMERDASHEV, ZA
    INDUSTRIAL LABORATORY, 1992, 58 (03): : 219 - 222
12345