空气环境下基于LIBS煤中氧含量分析研究  

Research on Accurate Measurement of Oxygen Content in Coal Using Laser-Induced Breakdown Spectroscopy in Air Environment

作　　者：尹王保[1] 张雷[1] 王乐[1] 董磊[1] 马维光[1] 贾锁堂[1] 

机构地区：[1]山西大学物理电子工程学院量子光学与光量子器件国家重点实验室,山西太原030006

出　　处：《光谱学与光谱分析》2012年第1期200-203,共4页Spectroscopy and Spectral Analysis

基　　金：国家高技术研究发展计划项目(2009AA063006);国家重点基础研究发展计划项目(2006CB921603);国家青年基金项目(60908019);国家质检公益性行业科研专项(200810002);山西省青年基金项目(2010021003-3)资助

摘　　要：给出了在空气环境下基于LIBS(激光诱导击穿光谱)技术的煤中有机氧含量的定量分析技术和方法。通过激光激发煤样品获得等离子体荧光谱,结合内标法、温度校正法、多线法等措施实现了对煤样品中氧含量的精确测量,其测量精度不低于1.37%,满足了燃煤电厂对煤质的分析要求。这种方法可在地矿、环保、医药、材料、考古、食品安全、生化及冶金等领域推广应用。A technique about accurate measurement of oxygen content in coal in air environment using laser-induced breakdown spectroscopy （ LIBS） is introduced in the present paper.Coal samples were excited by the laser,and plasma spectra were obtained.Combining internal standard method,temperat ure correction method and multi-line methods,the oxygen content of coal sample s was precisely measured.The measurement precision is not less than 1.37% for o xygen content in coal analysis,so is satisfied for the requirement of coal-fir ed power plants in coal analysis.This method can be used in surveying,environm e ntal protection,medicine,materials,archaeological and food safety,biochemica l and metallurgy application.

关 键 词：激光诱导击穿光谱 煤质分析 煤中氧含量 

分 类 号：TN204[电子电信—物理电子学] TH744.1[机械工程—光学工程]