氩氢火焰低温自动点燃装置用于氢化物发生-原子荧光光谱分析中的研究

Study on Application of Low Temperature Ar_H 2 Flame Automatic Ignition Device in Hydride Generation_ Atomic Fluorescence Spectrometric Analysis

介绍了一种最新研制成功的氢化物发生＿原子荧光光谱法中氩氢火焰低温自动点燃装置；研究了Ａｓ、Ｓｂ、Ｂｉ、Ｓｅ、Ｔｅ、Ｐｂ、Ｓｎ和Ｇｅ８种元素的氢化物分析特性；报道了新的检出限和精密度；讨论了不同的石英管预加热温度对分析灵敏度、线性范围和记忆效应等因素的影响以及有关氢化物原子化机理。

A low temperature Ar_H 2 flame automatic ignition device is successfully developed recently and its application in HG_AFS analysis is introduced in this paper. The analytical features of the new system for eight hydride formation elements (As, Sb, Bi, Se, Te, Ge, Sn and Pb) including detection limits and precision are demonstrated. The effects of pre_heating temperature on sensitivity, linear range, memory effect and the mechanism of hydride formation are also discussed.