氢化物发生-电感耦合等离子体原子发射光谱法同时测定人发中氢化元素和非氢化元素

Simultaneous Determination of Hydride Forming and Non-Hydride Forming Elements in Human Hair by Hydride Generation-Inductively Coupled Plasma Atomic Emission Spectrometry

采用连续氢化物发生法 ,在酸性介质中 ,对人发样品中可形成氢化物的元素 (As ,Se,Pb ,Hg ,Sb)和非氢化元素 (Zn、Cr、Mg、Mn、Ca、Fe、Cu、Ni、Cd、Al、Co、Mo、Ba)进行同时测定。研究了酸度、NaBH4 的浓度、载气流速、清洗时间对氢化元素的影响 ,比较了传统雾化法和 (雾化 +氢化法 )对氢化元素和非氢化元素的影响 ,选择了最佳分析条件。对标准人发样品中的 18种元素进行了测定 ,结果令人满意。

A method for simultaneous determination of both hydride forming and non-hydride forming elements in human hair has also been successful.The influence of HCl concentration,NaBH 4 concentration,carrier gas flow rate and rinse time on hydride forming elements intensity,and the effect of between nebulization and hydride-nebulization system on non-hydride forming elements have been studed.The optimum experimental conditions are selected.This method has been applied to the analysis of standard hauman hair with satisfactory results.