On-Site Detection of Ca and Mg in Surface Water Using Portable Laser-Induced Breakdown Spectroscopy

文献类型： 外文期刊

第一作者： Wan, Yuanxin

作者： Wan, Yuanxin;Zheng, Peichao;Wan, Yuanxin;Ma, Shixiang;Zhao, Xiande;Xing, Zhen;Jiao, Leizi;Tian, Hongwu;Dong, Daming;Ma, Shixiang;Zhao, Xiande;Xing, Zhen;Jiao, Leizi;Tian, Hongwu;Dong, Daming

作者机构：

关键词： laser-induced breakdown spectroscopy (LIBS); miniaturized LIBS; on-site detection

期刊名称：CHEMOSENSORS （ 影响因子：3.7； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 13 卷 1 期

页码：

收录情况： SCI

摘要： Ca and Mg are key constituents in surface water that are essential nutrients and vital indicators of water hardness. Rapid on-site measurement of Ca and Mg concentrations in surface water is important. However, traditional laboratory detection methods are complex and time-consuming, and on-site detection is difficult. In this study, a portable surface water detection method was developed using laser-induced breakdown spectroscopy with a miniaturized spectrometer LIBS and a liquid jet device for sample introduction. The device enables the rapid online in situ measurement of elemental concentrations in the water. The limits of detection for the rapid on-site detection of Ca and Mg in surface water were 11.58 and 2.57 mg/L, respectively. We applied this method to assess the concentrations of Ca and Mg in authentic water samples collected from rivers and ponds. The recovery rates for Ca and Mg were 90.83-101.74% and 93.43-108.74%, respectively. This method is suitable for rapid, on-site, and highly sensitive monitoring of Ca and Mg concentrations in the environment.

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