A novel approach for LIBS enhancement of cations underwater

Yuan Lu; Ying Li; Jiang-lai Wu; Shi-lei Zhong; Rong-er Zheng

doi:10.1117/12.836299

31 August 2009 A novel approach for LIBS enhancement of cations underwater

Yuan Lu, Ying Li, Jiang-lai Wu, Shi-lei Zhong, Rong-er Zheng

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73823U (2009) https://doi.org/10.1117/12.836299
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

Laser Induced Breakdown Spectroscopy (LIBS) has been developing as a promising technique with many advantages, including on-line, real time, stand off and multi-element detection etc. At present, LIBS application has involved many areas; more and more researchers have studied LIBS as an in-situ measurement for oceanic sensing. In this paper, a novel approach for LIBS enhancement has been introduced and used to improve the sensitivity of underwater detection. In this approach, the replacement reaction assisted with the electric field was utilized to strengthen the reaction and increase local cations concentration for depositing on the underlay surface. With the aid of replacement reaction and electric field, the LIBS sensitivity for cations detection underwater was found to be enhanced significantly, hence the detection limit. The detection limit of 16 ppb was achieved for copper cations (Cu²⁺) detection in the water solution of CuSO₄. The obtained results suggested that this novel approach has great potential to be developed as an effective method for cations detection underwater.

Citation Download Citation

Yuan Lu, Ying Li, Jiang-lai Wu, Shi-lei Zhong, and Rong-er Zheng "A novel approach for LIBS enhancement of cations underwater", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823U (31 August 2009); https://doi.org/10.1117/12.836299

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