激光诱导击穿光谱技术研究进展

激光诱导击穿光谱（laser-induced breakdown spectroscopy, LIBS）技术是一种基于原子发射光谱的物质成分分析技术，具有无需样品预处理、快速、多元素同时测量等特点；国内外研究人员在环境监测、工业过程控制、空间探测等多个领域均开展了大量研究工作，已形成较为完善的理论方法体系；在技术设备开发方面虽取得一定进展，但也存在诸多技术应用难题。综述了现阶段LIBS技术主要研究进展，重点包括光谱获取技术、光谱增强方法、元素识别, 及定量分析方法等，分析了LIBS仪器开发现状与存在的问题，为进一步发展LIBS技术的实用化提供参考。

Technique Progress and Development Trend of Laser-Induced Breakdown Spectroscopy

Laser-induced breakdown spectroscopy (LIBS) technique is widely used to analyze the composition and the concentration of elements in materials, which is based on the atomic emission spectral technology. LIBS has excellent advantages, such as rapid speed, multi-element detection and no need of any sample pretreatment. A lot of researches are done in the fields of the environment monitoring, industrial production control, food security and so on, and a relatively complete theory system has been formed. There still are a lot of technical problems along with the instrument development of LIBS technology. A review is given about the mechanism of LIBS technique and the progress of LIBS technology. The spectral detection method, qualitative detection of the characteristic emission lines and quantitative detection of heavy metal elements are included in the LIBS detection process. In addition, the instrument development of LIBS technology and inquiries about the developing prospect of LIBS instruments are described. The challenges and developing prospect of LIBS are investigated at last.