Simultaneous Determination of Seven Toxic Trace and/or Ultratrace Metals in Environmental Plants by Differential Pulse Voltammetry Without Change of Solution and Electrode
作者:
Wenrui Jin,
V.D. Nguyen,
P. Valenta,
H.W. Nürnberg,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 6
页码: 1235-1254
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708004052
出版商: Taylor & Francis Group
关键词: Differential pulse voltammetry;Environmental analysis;Trace analysis;Copper;Lead;Cadmium;Zinc;Manganese;Nickel;Cobalt
数据来源: Taylor
摘要:
A simple and reliable procedure simultaneously to determine seven trace and/or ultratrace toxic metals in a single sample of environmental plants has been presented. The procedure is based on the simultaneous determination of Cu, Pb and Cd by differential pulse anodic stripping voltammetry, of Zn and Mn by differential pulse voltammetry and of Ni and Co by differential pulse adsorption voltammetry at the hanging mercury drop electrode. The details of sampling, washing and drying of samples and the approach of digestion and preparation of samples for voltammetric determination have been investigated. The method has been applied to determination of the seven metals in grass and hucerne from different environments.
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