Laser-Induced Ionization in on Atmospheric-Pressure Microarc-Induced Plasma
作者:
MarkE. Churchwell,
Theodore Beeler,
JerryD. Messman,
RobertB. Green,
期刊:
Spectroscopy Letters
(Taylor Available online 1985)
卷期:
Volume 18,
issue 9
页码: 679-693
ISSN:0038-7010
年代: 1985
DOI:10.1080/00387018508062300
出版商: Taylor & Francis Group
关键词: Laser-enhanced ionization;Direct laser ionization;Microarc-induced plasma;Sodium;Indium
数据来源: Taylor
摘要:
A microarc discharge operated at atmospheric pressure in flowing helium is investigated as an atom reservoir for laserinduced ionization spectrometry. The operational characteristics of the microarc discharge as a primary atom source for atomic spectrometry are briefly examined. Preliminary observations of atomic emission and laser-induced ionization of sputtered analyte atoms in the microarc discharge and plasma are presented. A detection limit of 3 ng has been estimated for sodium by direct laser ionization in the helium microarc-induced plasma.
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