Abstract

The laser microprobe has been applied to the excitation of trace elements homogeneously distributed in powdered materials. Precision of intensity ratios is about ±11% (coefficient of variation), and detection levels are comparable to those of the dc arc. Matrix effects were studied for four different materials and found to be significantly less than in the dc arc. Use of the probe as the source in a "universal" method is suggested.

Air-Cooled Electrodes for the Spectrochemical Analysis of Powders*†‡

B. J. Stallwood
J. Opt. Soc. Am. 44(2) 171-176 (1954)

Homogeneous-material-based calibration method for correcting laser-induced breakdown spectroscopy measurement-error bias in the case of dust pollution

Yang Zhao, Lei Zhang, Wangbao Yin, Jiajia Hou, Zhe Wang, Zongyu Hou, Weiguang Ma, Lei Dong, Guangye Yang, Liantuan Xiao, and Suotang Jia
Appl. Opt. 56(35) 9644-9648 (2017)

Reflection and Polarization Properties of Powder Materials

H. H. Blau, E. L. Gray, and G. M. B. Bourioius
Appl. Opt. 6(11) 1899-1904 (1967)

The Spectroscopy of Shock-Excited Powdered Solids

R. W. Nicholls, W. H. Parkinson, and E. M. Reeves
Appl. Opt. 2(9) 919-930 (1963)

Spectrochemical Analysis of Solutions Using Spark Excitation*†

Henry A. Sloviter and Alexander Sitkin
J. Opt. Soc. Am. 34(7) 400-404 (1944)