高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (2): 175.

• 论文 • 上一篇    下一篇

亚稳态能量转移发射光谱法测定痕量铅的研究

于爱民, 范富良, 金钦汉   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1991-03-28 出版日期:1992-02-24 发布日期:1992-02-24
  • 通讯作者: 于爱民
  • 基金资助:

    国家自然科学基金

Studies on Determination of Trace Lead by Metastable Energy Transfer Emission Spectroscopy

YU Ai-min, FAN Fu-liang, JIN Qin-han   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1991-03-28 Online:1992-02-24 Published:1992-02-24

摘要: 本文提出了一种测定痕量铅的亚稳态能量转移发射光谱法。利用Surfatron表面波激发获得活化氮。采用电热蒸发微量进样装置进样,考察了各实验参数对测定铅的影响。在波长283.3nm处,铅的检出限可达0.12ng,实际样品分析结果令人满意。对Surfatron表面波激发-活化氮诱导亚稳态能量转移的机理进行了初步探讨。

关键词: Pb, 微波放电, 亚稳态能量转移, 发射光谱法

Abstract: The determination of trace lead with metastable energy transfer emission spectrometry is describedThe active nitrogen is produced in a microwave discharge SurfatronThe sample solution was introduced with an electrothermal vaporization systemThe experimental parameters affecting the determination of lead were examinedThe detection limit of lead line at 283.3 nm is 0.12 ngThe method has been applied to the analysis practical samples and the result is satisfactoryThe mechanism for the metastable energy transfer of active nitrogen induction by Surfatron was studied and discussed.

Key words: Lead, Microwave discharge, Metastable energy transfer, Emission spectrometry

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