Premium
A Study of Nafion‐Coated Bismuth‐Film Electrode for the Determination of Zinc, Lead, and Cadmium in Blood Samples
Author(s) -
Liu Benzhi,
Lu Liyuan,
Wang Min,
Zi Yanqin
Publication year - 2008
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804333
Subject(s) - cadmium , bismuth , zinc , nafion , detection limit , analytical chemistry (journal) , calibration curve , anodic stripping voltammetry , stripping (fiber) , atomic absorption spectroscopy , electrode , trace amounts , voltammetry , materials science , differential pulse voltammetry , chemistry , cyclic voltammetry , chromatography , electrochemistry , metallurgy , medicine , physics , alternative medicine , composite material , quantum mechanics , pathology
In this article a sensitive differential pulse stripping voltammetry technique on Nafion‐coated bismuth‐film electrode (NCBFE) was studied for the simultaneous determination of zinc, cadmium, and lead ions in blood samples at ultra trace levels. The measurement results were in excellent agreement with those obtained from atomic absorption spectroscopy. Various operational parameters were investigated and discussed in terms of their effect on the measurement signals. Under optimal conditions, calibration curves for the simultaneous determination of zinc, cadmium, and lead ions were achieved, based on three times the standard deviation of the baseline, the limits of detection were 0.09 μg L −1 for Cd(II), 0.13 μg L −1 for Pb(II), and 0.97 μg L −1 for Zn(II) respectively.