Determination of trace multi-elements in coal fly ash by inductively coupled plasma mass spectrometry

被引：0
作者：
Hua-lin Xie
You-gen Tang
Yu-jie Li
Li-bo Li
机构：
[1] Central South University,School of Chemistry and Chemical Engineering
[2] Hunan Institute of Technology,Department of Chemistry
来源：
Journal of Central South University of Technology | 2007年 / 14卷 / 1期
关键词：
coal fly ash; microwave digestion; inductively coupled plasma mass spectrometry; determination;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The contents of Cr, Cu, Ni, As, Cd and Pb in coal fly ash were determined by a high resolution inductively coupled plasma mass spectrometry method. The sample digestions were performed in closed microwave vessels with HNO3, NClO4 and HF. The optimum conditions for the determination were obtained. The applicability of the proposed method was validated by the analysis of coal fly ash reference material (NIST SRM 1633a). The results show that most of the spectral interferences can be avoided by measuring in the high resolution mode (maximum mass resolution R=9 000). The detection limit is from 0.05 to 0.21 μg/g, and the precision is fine with relative standard deviation less than 4.3%.
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页码：68 / 72
页数：4
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