Matsumoto Ayumu, Sakka Tetsuo
Department of Chemical Engineering and Materials Science, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan.
Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-daigau-katsura, Nishikyo, Kyoto, 615-8510, Japan.
Anal Sci. 2021 Aug 10;37(8):1061-1072. doi: 10.2116/analsci.20R007. Epub 2020 Dec 18.
Fundamentals to applications of underwater laser-induced breakdown spectroscopy (LIBS) of submerged solid targets are reviewed. Since the deformation of spectral lines caused by plasma confinement has been the most serious problem in underwater LIBS, the methods developed to overcome this effect are overviewed. Deep-sea LIBS, which is the most successful application of underwater LIBS, is described in some detail as well as the hydrostatic pressure effects. Since the downsizing of underwater LIBS instrument is an important task for the applications to on-site measurements, studies on non-gated LIBS are covered. In the subsequent section, the methods for the quantitative analysis of the underwater LIBS signal are reviewed. The basics of the plasma parameters used in quantitative analysis are explained, and various methods of quantitative analysis applicable to underwater LIBS are described.
综述了水下激光诱导击穿光谱（LIBS）对淹没固体目标的应用基础。由于等离子体限制引起的谱线变形一直是水下LIBS中最严重的问题，因此概述了为克服这种影响而开发的方法。详细描述了深海LIBS，它是水下LIBS最成功的应用，以及静水压力效应。由于水下LIBS仪器的小型化是现场测量应用的一项重要任务，因此涵盖了对非选通LIBS的研究。在随后的部分中，综述了水下LIBS信号的定量分析方法。解释了定量分析中使用的等离子体参数的基础知识，并描述了适用于水下LIBS的各种定量分析方法。
