Research of laser induced breakdown spectroscopy for detection of trace Cd in polluted soil

Shiqing Chen; Xiaohong Ma; Huafeng Zhao; Hui Lv

doi:10.1117/12.968577

7 November 2012 Research of laser induced breakdown spectroscopy for detection of trace Cd in polluted soil

Shiqing Chen, Xiaohong Ma, Huafeng Zhao, Hui Lv

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AL (2012) https://doi.org/10.1117/12.968577
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

In this article, the quantitative analysis of trace Cd in polluted soil has investigated with Laser Induced Breakdown Spectroscopy (LIBS) technique by calibration. In order to improve its detection sensitivity and limit of detection (LOD), a spectral data processing approach, Radial Basis Function (RBF) neural network and Lorentz function were introduced to optimize the LIBS spectral data, was used and verified in this article. The calibration curve of Cd in soil was obtained, its linear correlation is 0.9998, and the LOD of Cd in soil is 16.5 mg/kg, in this article.

Citation Download Citation

Shiqing Chen, Xiaohong Ma, Huafeng Zhao, and Hui Lv "Research of laser induced breakdown spectroscopy for detection of trace Cd in polluted soil", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AL (7 November 2012); https://doi.org/10.1117/12.968577

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