Guided conversion to enhance cation detection in water using laser-induced breakdown spectroscopy
Guided conversion to enhance cation detection in water using laser-induced breakdown spectroscopy
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DOI：
10.1364/ao.49.000c75
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发表时间：
2010-05-01
期刊：
影响因子：
1.9
通讯作者：
Zheng, Ronger
中科院分区：
文献类型：
--
作者：
Lu, Yuan;Li, Ying;Zheng, Ronger
一种名为引导转换增强的新方法已经建立，以提高水中阳离子检测的激光诱导击穿光谱（LIBS）灵敏度。该方法涉及两个过程：主要部分是置换反应，将水中的阳离子转化为浸入金属板表面的固体颗粒；另一种是电辅助，增加局部阳离子浓度并加强反应。借助置换反应和电场，CuSO4 水溶液中铜阳离子 (Cu2+) 的检测限达到 16 ppb。所获得的结果表明该方法具有发展成为水下阳离子检测的有效方法的巨大潜力。 (C) 2010 美国光学学会
A novel approach, named guided conversion enhancement, has been established to improve the laser-induced breakdown spectroscopy (LIBS) sensitivity of cation detection in water. Two processes were involved in this approach: the main part was replacement reaction that converted the cations in water to solid granules on the surface of an immersed metallic sheet; the other was electric assistance that increased local cation concentration and strengthened the reaction. With the aid of replacement reaction and an electric field, a detection limit of 16 ppb was achieved for copper cation (Cu2+) detection in a water solution of CuSO4. The obtained results suggest that this approach has significant potential to be developed as an effective method for underwater cation detection. (C) 2010 Optical Society of America