ICP／AES操作条件及氢化物发生条件对As、Se和Ge光谱信号影响的研究

STUDY OF THE INFLUENCES OF ICP/AES OPERATING CONDITIONS AND HYDRIDE GENERATION CONDITIONS ON THE SPECTRAL SIGNALS OF As,Se AND Ge

本文较系统地研究了ＩＣＰ／ＡＥＳ操作条件及酸介质。ＮａＢＨ４溶液浓度对Ａｓ、Ｓｅ和Ｇｅ谱线强度以及信背比的影响，讨论了这些元素的最佳检测条件，考察了一些共存元素对氢化物光谱信号的影响，观察到Ａｓ、Ｓｅ和Ｇｅ氢化物发生中Ｇｅ的光谱信号的一些特殊行为，及Ｃｕ对Ｇｅ的氢化物光谱信号的增强。

This paper deals mainly with the influences of ICP/AES operating conditions,acidic media and concentration of NaBH.solution on the intensity and S/B ratio of the spectral lines of hydride generation of As,Se and Ge.The preferable experimental conditions for the detection of these elements are discussed and the influences of co-existent elements(Na,Ca,Fe,Al,Cu,Co,Ni,Zn) on the signals are investigated.The special behaviour of Ge shown in the spectral signals of the hydride generation of As, Se and Ge and of the spectral signal enhancement of Ge in the presence of Cu are observed.