DETERMINATION OF TRACE-METALS (CD, PB) IN FISH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY AFTER MICROWAVE DIGESTION

被引：76
作者：
SURES, B
TARASCHEWSKI, H
HAUG, C
机构：
[1] Zoologisches Institut -Ökologie, Universität Karlsruhe
来源：
ANALYTICA CHIMICA ACTA | 1995年 / 311卷 / 02期
关键词：
ATOMIC ABSORPTION SPECTROMETRY; CADMIUM; LEAD; FISH;
D O I：
10.1016/0003-2670(95)00191-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method is elaborated to determine cadmium and lead in biological tissues. 0.2 g samples of muscle of chub were digested with 1.8 mi concentrated nitric acid in a commercially available microwave digestion bomb and analysed with a Zeeman-effect background corrected atomic absorption spectrometer. The concentrations of cadmium and lead in the muscles of fish ranged between 6-8 ng g(-1) and 30-40 ng g(-1), respectively, whereby the detection limit was 0.14 ng ml(-1) for cadmium and 6.4 ng ml(-1) for lead. The analytical results for the determination of Cd and Pb indicated that the applied microwave digestion gave low acid blank concentrations. Additionally, microwave heating is rapid and safe and a reduction of acid volume can be realized.
引用
收藏
页码：135 / 139
页数：5
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