Determination of trace multi-elements in coal fly ash by inductively coupled plasma mass spectrometry
来源期刊：中南大学学报(英文版)2007年第1期
论文作者：谢华林 唐有根 李玉杰 李立波
文章页码：68 - 68
Key words：coal fly ash; microwave digestion; inductively coupled plasma mass spectrometry; determination
Abstract: 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, HClO4 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%.
基金信息：the National Basic Research Program of China
