Nickel quantification in mice organs by adsorptive cathodic stripping voltammetry using mercury microelectrodes

被引：8
|
作者：
Pereira, MC
Faria, JL
Reis, ML
Sousa, JP
机构：
[1] UNIV PORTO, FAC ENGN, DEPT ENGN QUIM, INST BIOMED ENGN, P-4050 OPORTO, PORTUGAL
[2] UNIV PORTO, FAC ENGN, DEPT ENGN QUIM, LAB CATALISE & MAT, P-4099 OPORTO, PORTUGAL
[3] IGM, INST GEOL & MINEIRO, P-4465 S MAMEDE INFESTA, PORTUGAL
来源：
ELECTROANALYSIS | 1997年 / 9卷 / 02期
关键词：
nickel; adsorptive stripping voltammetry; microelectrodes; mice organs;
D O I：
10.1002/elan.1140090212
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Mercury film microelectrodes (MFMs) were used to quantify trace levels of nickel accumulated in mice organs samples after dosing the mice with a physiological solution containing 150 ppm of Ni ions over a period of time, by performing adsorptive cathodic stripping square wave voltammetry (AdSWV). The residues obtained after digestion of the biological organs with nitric acid which affects the electrochemical response of Ni were investigated by XRD and IR spectrometry and found po be mainly composed by p-nitrobenzoic acid. Electrochemical conditions for the quantification of Niwith MFMs in the biological solutions were optimized. The electrochemical data compared favorably with that obtained by atomic absorption spectrometry.
引用
收藏
页码：150 / 154
页数：5
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