电热进样MIP-AAS测定银的研究

Determination of silver by microwave induced plasma-atomic absorption spectrometry(MIP-AAS) after electrothermal sample introduction

本文利用L型放电一吸收管与电热进样微波诱导等离子体原子吸收光谱法(ET—MIP—AAS)相结合,研究了进样装置,考察了各种实验参数对分析准确度的影响,给出了该方法测银的浓度,讨论了共存元素等因素对检测结果的影响.将本文所推荐的方法用于实际样品分析,亦获得了较好的结果.

In this paper, the silver determination by microwave induced plasma-atomic absorption spectrometry after electrothermal sample introduction and also the employment of L-Shaped discharge-absorption tube were studied. The sample introduction device and the influence of various experimental parameters on assay accuracy were investigated, the density of silverwas given and the influence of coexistent elements on the results of determination were discussed. This method has been successfully used in practical determination of silver