TY - JOUR
T1 - Laser-induced Breakdown Spectroscopy for detection of heavy metals in environmental samples
AU - Wisbrun, Richard
AU - Schechter, Israel
AU - Niessner, Reinhard
AU - Schröder, Hartmut
N1 - Publisher Copyright:
© 1992 SPIE. All rights reserved.
PY - 1992
Y1 - 1992
N2 - The application of LIBS technique as a sensor for heavy metals in solid environmental samples has been studied. This specific application introduces some new problems in the LIBS analysis. Some of them are related to the particular distribution of contaminants in the grained samples. Other problems are related to mechanical properties of the samples and to general matrix effects, like the water and organic fibers content of the sample. An attempt has been made to optimize the experimental set-up for the various involved parameters. The understanding of these factors has enabled the adjustment of the technique to the substrates of interest. The special importance of the grain size and of the laser-induced aerosol production is pointed out. Calibration plots for the analysis of heavy metals in diverse sand and soil samples have been carried out. The detection limits are shown to be usually below the recent regulation restricted concentrations.
AB - The application of LIBS technique as a sensor for heavy metals in solid environmental samples has been studied. This specific application introduces some new problems in the LIBS analysis. Some of them are related to the particular distribution of contaminants in the grained samples. Other problems are related to mechanical properties of the samples and to general matrix effects, like the water and organic fibers content of the sample. An attempt has been made to optimize the experimental set-up for the various involved parameters. The understanding of these factors has enabled the adjustment of the technique to the substrates of interest. The special importance of the grain size and of the laser-induced aerosol production is pointed out. Calibration plots for the analysis of heavy metals in diverse sand and soil samples have been carried out. The detection limits are shown to be usually below the recent regulation restricted concentrations.
UR - http://www.scopus.com/inward/record.url?scp=0027228899&partnerID=8YFLogxK
U2 - 10.1117/12.140236
DO - 10.1117/12.140236
M3 - 会议文章
AN - SCOPUS:0027228899
SN - 0277-786X
VL - 1716
SP - 2
EP - 15
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - International Conference on Monitoring of Toxic Chemicals and Biomarkers 1992
Y2 - 15 June 1992 through 19 June 1992
ER -