激光诱导击穿光谱结合自由定标法同时定量分析玻璃主要元素  

Simultaneously Quantitative Analysis on the Main Elements in Glass with Laser-induced Breakdown Spectroscopy Combined with Calibration-free Method

作　　者：李超[1] 王吉[2] 张炜[1] 陈华才[1] 

机构地区：[1]中国计量学院光学与电子科技学院,杭州310018 [2]浙江省台州出入境检验检疫局,浙江台州318000

出　　处：《光子学报》2016年第4期111-116,共6页Acta Photonica Sinica

基　　金：浙江检验检疫局科研计划项目(No.ZK201413);浙江省重点科技创新团队项目(No.2010R50028)资助

摘　　要：建立激光诱导击穿光谱结合自由定标法快速定量分析玻璃中主要元素Si和Ba的方法.采用由调Q脉冲Nd：YAG激光器、中阶梯光栅光谱仪和ICCD检测器等组成的激光诱导击穿光谱系统采集4种标准玻璃样品的激光诱导击穿光谱.提取光谱信息,结合自由定标法建立样品中Si和Ba的玻尔兹曼曲线,计算获得4种玻璃样品中Si和Ba的含量.Si含量分析相对误差在4.96%-10.12%之间,标准差在0.38%-1.29%之间,Ba含量分析相对误差在4.07%-9.62%之间,标准差在0.54%-1.70%之间.T检验表明,测量值与实际值无显著差异.A method of simultaneously quantitative measurement of the main elements（Si and Ba）in glass by using Laser-Induced Breakdown Spectroscopy（LIBS）was established.The LIBS system is composed of a Q pulse Nd：YAG laser,an echelle grating spectrometer and an ICCD detector.We collected the LIBS spectra of 4glass samples.The Boltzmann curves of the main elements Si and Ba were established by using free calibration method.The contents of Si and Ba in glass samples were calculated with Boltzmann curves.The relative error of the contents of Si and Ba ranged from 4.96% to 10.12% and from 4.07%to 9.62%,respectively.The standard deviation of the contents of Si and Ba ranged from0.38%to 1.29% and from 0.54% to 1.70%,respectively.T test results showed that there was no significant difference between the measured values and the actual values.

关 键 词：激光诱导击穿光谱 玻璃 自由定标法 同时定量分析 波尔兹曼平面 

分 类 号：O433[机械工程—光学工程]