CuSO_4水溶液中Cu元素的激光诱导击穿光谱研究  

Laser Induced Breakdown Spectroscopy of Copper in CuSO_4 Solution

作　　者：傅院霞[1] 吴江来[2] 冯源[1] 方霞[1] 管士成[1] 张先燚[1] 凤尔银[1] 季学韩[1] 郑荣儿[2] 崔执凤[1] 

机构地区：[1]安徽师范大学原子与分子物理研究所,安徽芜湖241000 [2]中国海洋大学光学光电子实验室,山东青岛266071

出　　处：《安徽师范大学学报（自然科学版）》2008年第2期128-132,共5页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金项目(10674002);国家高科技研究发展863计划项目(2006AA09Z243);安徽省原子与分子物理重点学科基金项目

摘　　要：通过单脉冲激光诱导击穿光谱技术(LIBS),测定了CuSO4水溶液中微量重金属元素Cu的LIBS光谱.研究Cu原子LIBS光谱信号的时间演化特性,激光功率密度对LIBS光谱信号的影响,测定Cu元素浓度在31.25ppm到1000ppm区域内变化时324.75nm谱线的强度,由定标曲线拟合结果得到铜元素的检测限为23ppm.The LIBS of trace heavy metal element copper in CuSO4 solution was measured by the single-pulse laser technique. The time evolution properties of the Cu LIBS signal, the dependence of the LIBS signal of Cu 324.75nm spectral line on the laser power density and the concentration of Cu from 31. 25ppm to 1000ppm in the CuSO4 solution were also investigated. The LIBS detection limit of Cu in the solution was determined to be 23ppm from the measured calibration curve.

关 键 词：激光诱导击穿光谱 溶液 Cu元素 时间演化 检测限 

分 类 号：O562.3[理学—原子与分子物理]