激光诱导击穿光谱结合化学计量学在冶金体系定量分析中的研究进展  

Research progress in quantitative analysis of laser-induced breakdown spectroscopy combined with chemometrics in metallurgical system

作　　者：张容玲 宋晨佳 李又超 张天龙[1] 汤宏胜[1] 李华[1,2] ZHANG Rongling;SONG Chenjia;LI Youchao;ZHANG Tianlong;TANG Hongsheng;LI Hua(Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education,College of Chemistry and Material Science,Northwest University,Xi'an 710127,China;College of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,China)

机构地区：[1]合成与天然功能分子化学教育部重点实验室,西北大学化学与材料科学学院,陕西西安710127 [2]西安石油大学化学化工学院,陕西西安710065

出　　处：《冶金分析》2024年第10期22-30,共9页Metallurgical Analysis

基　　金：国家自然科学基金项目(22173071,22073074)。

摘　　要：冶金分析是冶金生产过程中不可缺少的重要环节,同时也是原料选择、冶炼工艺流程控制与产品检验等的重要依据和技术手段。为了适应工艺生产优化的客观需要,冶金工艺面临着提高精确性、分辨率、快速性、连续性、在线性和系统性等的实际需求。激光诱导击穿光谱(LIBS)作为一种基于激光的创新型原子发射光谱分析技术,因其具有无需复杂样品预处理、实时在线分析、远程探测、非接触式测量等独特优势,在冶金领域具有广泛的应用前景和发展潜力。传统定量分析方法如标准曲线法、内标法和自由定标法等,在准确度上通常受样品均匀性、基体效应以及自吸收效应等影响,无法满足实际复杂应用场景的高精度定量分析。化学计量学能够从复杂体系多维光谱信号中最大程度地提取特征信息,进而建立适用于冶金领域复杂体系精准定量的分析方法。因此,本文综述了近5年LIBS结合化学计量学方法在矿石与合金材料定量分析方面的研究进展,进一步总结了矿石与合金材料存在的关键问题以及发展趋势。Metallurgical analysis is an indispensable step in metallurgical production process,and it is also an important basis and technical means for the raw material selection,smelting process control and product inspection.In order to meet the objective requirements of process production optimization,the metallurgical process is faced with the practical demands in improvement of accuracy,resolution,rapidity,continuity,online performance and systematicness.Laser-induced breakdown spectroscopy(LIBS)is an innovative atomic emission spectrometry analysis technology based on laser,and it has a wide application prospect and development potential in the metallurgical field because of its unique advantages such as no need for complex sample pretreatment,real-time online analysis,remote detection and non-contact measurement.The traditional quantitative analysis methods,such as standard curve method,internal standard method and free calibration method,are usually affected by the sample uniformity,matrix effect and self-absorption effect in accuracy,which cannot meet the high-precision quantitative analysis of practical complex application scenarios.Chemometrics can extract characteristic information from multi-dimensional spectral signals of complex systems to the greatest extent,and it is used to establish some accurate quantitative analysis methods suitable for complex systems in metallurgical field.Therefore,the research progress of quantitative analysis of ores and alloys by LIBS combined with chemometrics in recent five years were reviewed.Moreover,the key problems and development trends in this field were summarized.

关 键 词：激光诱导击穿光谱(LIBS) 化学计量学 合金分析 矿石分析 

分 类 号：O433.54[机械工程—光学工程] O657.38[理学—光学]