13 June 2017 ST-LIBS for heavy element detection in complex matrices
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Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering; 104492T (2017) https://doi.org/10.1117/12.2270895
Event: Fifth International Conference on Optical and Photonics Engineering, 2017, Singapore, Singapore
Abstract
Interest in the use of laser-based sensors operating in stand-off mode is increasing due to the wide range of options offered in the evaluation of distant targets. In this work, a stand-off laser induced breakdown spectroscopy (ST-LIBS) system has been developed and demonstrated to determine the heavy elements in soil samples. Initially, different parameters of the device have been optimized in ambient atmosphere and tested for quantitative analysis of Nickel and Chromium at two different stand-off distances (1 m and 6 m). The prepared concentrations were in the range of 100 ppm to 600 ppm. The laser energy of 150 mJ was maintained through out the experiment and to obtain a real time situation the target was in static state.
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M. M. Tamboli, M. M. Tamboli, Unnikrishnan V. K., Unnikrishnan V. K., Praveen Devangad, Praveen Devangad, Muhammed Shameem K. M., Muhammed Shameem K. M., Santhosh C., Santhosh C., } "ST-LIBS for heavy element detection in complex matrices", Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104492T (13 June 2017); doi: 10.1117/12.2270895; https://doi.org/10.1117/12.2270895
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