AlCl_3水溶液和混合溶液中Al元素的双脉冲激光诱导击穿光谱  

Dual-Pulse Laser-Induced Breakdown Spectroscopy of Al Element in AlCl_3 Aqueous and Mixed Compound Solutions

作　　者：王莉[1,2] 徐丽[1,2] 周彧[2] 郑贤锋[2] 季学韩[2] 姚关心[2] 崔执凤[2] 

机构地区：[1]蚌埠学院数学与物理系,安徽蚌埠233030 [2]安徽师范大学原子与分子物理研究所,安徽芜湖241000

出　　处：《中国激光》2014年第4期254-260,共7页Chinese Journal of Lasers

基　　金：国家自然科学基金(11074003);蚌埠学院校级大学物理团队项目(2013jyxmo5);安徽省光电科学与工程专业建设项目(2013zytz077)

摘　　要：利用自建的液相射流和双脉冲激光诱导击穿光谱技术(LIBS)实验装置,测定了AlCl3水溶液和混合溶液中Al元素的单脉冲和双脉冲激光诱导击穿光谱,给出了单、双脉冲下的最优LIBS实验参数,在最优化实验条件下,得到AlCl3水溶液和混合溶液中Al元素质量分数的单、双脉冲LIBS检测限分别为26.79×10-6、28.85×10-6和11.93×10-6、14.46×10-6,双脉冲LIBS检测灵敏度比单脉冲明显提高。By home-made experimental setup with aqueous jets and dual-pulse laser-induced breakdown spectroscopy （LIBS） technique, the dual-pulse and single pulse LIBS are applied to the detection of A1 trace element in A1CI3 aqueous and mixed compound solution jets. The optimum parameters of dual-pulse and single pulse LIBS experiment are presented. Both the dual-pulse and single pulse LIBS detection limits of mass fraction of A1 element in A1CI3 aqueous and mixed compound solutions are obtained as 26, 79 X 10^ 6, 28, 85 x 10^ 6 and 11.93 X 10^-6 , 14.46 X 10^-6 respectively under the optimum experiment conditions. It is shown that detection sensitivity of dual-pulse LIBS is enhanced dramatically compared to the single pulse case.

关 键 词：光谱学 激光诱导击穿光谱 液体射流 双脉冲 检测限 

分 类 号：TN247[电子电信—物理电子学]