采用混合配体吸附阴极溶出伏安法直接同时测定孔隙水中的 Co、Cu、Fe、Ni 和 V。
Direct simultaneous determination of Co, Cu, Fe, Ni and V in pore waters by means of adsorptive cathodic stripping voltammetry with mixed ligands.
机构信息
INRB/IPIMAR, National Institute of Biological Resources. Avenida Brasília, 1446-006 Lisbon, Portugal.
出版信息
Talanta. 2011 Jul 15;85(1):506-12. doi: 10.1016/j.talanta.2011.04.035. Epub 2011 Apr 16.
An analytical procedure is proposed for the direct simultaneous determination in a single scan of Co, Cu, Fe, Ni and V in sediment pore waters by means of adsorptive cathodic stripping voltammetry (ACSV) with mixed ligands (DMG and catechol). Optimum conditions for the determination of these five elements were studied. Detection limits of the technique depended upon the reproducibility of the procedure blank, and were found to be 0.04 nM Co, 0.09 nM Cu, 1.29 nM Fe, 0.46 nM Ni and 2,52 nMV making the method suitable for the direct simultaneous determination of these five metals in pore waters, estuarine waters and probably coastal waters.
提出了一种分析程序，用于通过混合配体（DMG 和儿茶酚）的吸附阴极溶出伏安法（ACSV）在单个扫描中直接同时测定沉积物孔隙水中的 Co、Cu、Fe、Ni 和 V。研究了确定这五种元素的最佳条件。该技术的检测限取决于程序空白的重现性，发现 Co 的检测限为 0.04 nM，Cu 为 0.09 nM，Fe 为 1.29 nM，Ni 为 0.46 nM，V 为 2.52 nM，使该方法适用于直接同时测定孔隙水、河口水中和可能的沿海水域中的这五种金属。
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