摘要
To develop a fast and sensitive alloy elemental analysis method,a laser-induced breakdown spectroscopy(LIBS)system was established and used to carry out quantitative analysis of impurities in aluminum alloys in air at atmospheric pressure.A digital storage oscilloscope was used as signal recording instrument,instead of traditional gate integrator or Boxcar averager,to reduce the cost of the whole system.Linear calibration curves in the concentration range of 4×10-510-2 are built for Mg,Cr,Mn,Cu and Zn using absolute line intensity without internal calibrations.Limits of detection for these five elements in aluminum alloy are determined to be(2-90)×10-6.It is demonstrated that LIBS can provide quantitative trace elemental analysis in alloys even without internal calibration.This approach is easy to use in metallurgy industries and relative research fields.
To develop a fast and sensitive alloy elemental analysis method, a laser-induced breakdown spectroscopy（LIBS） system was established and used to carry out quantitative analysis of impurities in aluminum alloys in air at atmospheric pressure. A digital storage oscilloscope was used as signal recording instrument, instead of traditional gate integrator or Boxcar averager, to reduce the cost of the whole system. Linear calibration curves in the concentration range of 4 ×10^-5-10^-2 are built for Mg, Cr, Mn, Cu and Zn using absolute line intensity without internal calibrations. Limits of detection for these five elements in aluminum alloy are determined to be （2-90）× 10^-6. It is demonstrated that LIBS can provide quantitative trace elemental analysis in alloys even without internal calibration. This approach is easy to use in metallurgy industries and relative research fields.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2008年第1期222-226,共5页
Transactions of Nonferrous Metals Society of China
基金
Project supported by Research Funding and Hundred-Step-Ladder Climbing Program of South China University of Technology,China
关键词
激光
光谱学
铝合金
杂质分析
laser-induced breakdown spectroscopy
aluminum alloy
impurity analysis
