ST-LIBS for heavy element detection in complex matrices

M. M. Tamboli; Unnikrishnan V. K.; Praveen Devangad; Muhammed Shameem K. M.; Santhosh C.

doi:10.1117/12.2270895

13 June 2017 ST-LIBS for heavy element detection in complex matrices

M. M. Tamboli, Unnikrishnan V. K., Praveen Devangad, Muhammed Shameem K. M., Santhosh C.

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.

Citation Download Citation

M. M. Tamboli, Unnikrishnan V. K., Praveen Devangad, Muhammed Shameem K. M., and 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); https://doi.org/10.1117/12.2270895

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