期刊
APPLIED SPECTROSCOPY
卷 64, 期 11, 页码 1289-1297出版社
SAGE PUBLICATIONS INC
DOI: 10.1366/000370210793334963
关键词
Laser-induced breakdown spectroscopy; LIBS; Signal enhancement; Buffer gas; Buffer gas pulsed jet
资金
- Korean Government [2010-0009376]
- Ministry for Food, Agriculture, Forestry and Fisheries of the Korean government
- National Research Foundation of Korea
- National Research Foundation of Korea [2010-0009376] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We report a new simple method for the signal enhancement of laser-induced breakdown spectroscopy using a pulsed buffer gas jet. The signal is enhanced up to more than 10 fold by using argon gas jets, which are injected through a pulsed nozzle onto the sample area to be analyzed. By synchronizing the buffer gas pulse with the laser pulse and optimizing the spatial arrangements between the gas jet and the sample surface, we have successfully exploited the useful properties of the buffer gas in open atmosphere. The signal-enhancement mechanism in our buffer gas jet has been discussed. Also, applications to various samples (metal, glass, and paper) have been demonstrated.
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