Detection of argon and krypton traces in noble gases by diode laser absorption spectrometry

被引：11
|
作者：
Uhl, R
Franzke, J
Haas, U
机构：
[1] Univ Hohenheim, Inst Phys, D-70599 Stuttgart, Germany
[2] Inst Spektrochem & Angew Spektroskopie Dortmund, D-44139 Dortmund, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 73卷 / 01期
关键词：
D O I：
10.1007/s003400100614
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Wavelength modulation, diode laser atomic absorption spectrometry is applied to measure traces of argon and krypton in other noble gases. Strong transitions from long-lived metastable levels highly populated in a low-pressure de discharge are induced with a standard diode laser in the spectral range around 811nm. The detection limits achieved are in the lower ppbv range, and the residual concentrations of Kr and Ar traces in the utilized high-purity noble eases are measured.
引用
收藏
页码：71 / 74
页数：4
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