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Proceedings Paper

Research of laser induced breakdown spectroscopy for detection of trace Cd in polluted soil
Author(s): Shiqing Chen; Xiaohong Ma; Huafeng Zhao; Hui Lv
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Paper 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.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AL (7 November 2012); doi: 10.1117/12.968577
Show Author Affiliations
Shiqing Chen, Tsinghua Univ. (China)
Xiaohong Ma, Tsinghua Univ. (China)
Huafeng Zhao, Tsinghua Univ. (China)
Hui Lv, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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