江西农业大学学报Issue(2)：359-362,4.DOI:10.13836/j.jjau.2015055
水中重金属元素镉的激光诱导击穿光谱快速检测研究
Detection of Cd in Water by Laser-induced Breakdown Spectroscopy
摘要
Abstract
The research purpose is to detect the heavy metal Cd in sewage by using laser⁃induced break⁃down spectroscopy(LIBS).The test was conducted with different concentrations of Cd chloride in water by laser induced breakdown spectroscopy.361.05 nm line was selected as the characteristic spectral line of Cd.The opti⁃mal delay time was 1 280 ns,the best pulse laser energy was 110 mJ.The quantitative analysis of Cd was car⁃ried out by linear fitting.The linear correlation coefficient of fitting curve was 0.995 38,the relative errors of two validated samples were 9.21%,8.50% respectively.The results show that LIBS technique for real⁃time,on⁃line quantitative analysis of heavy metals in water is feasible.However,the sensitivity of detection needs further improvement.关键词
激光技术/激光诱导击穿光谱/水/镉/灵敏度Key words
laser technique/LIBS/water/Cd/sensitivity分类
信息技术与安全科学引用本文复制引用
胡慧琴,姚明印,涂建平,黄林,陈添兵,杨平,刘木华,何秀文,樊十全..水中重金属元素镉的激光诱导击穿光谱快速检测研究[J].江西农业大学学报,2015,(2):359-362,4.基金项目
国家自然科学基金项目（31460419）、2014年度江西省重大科技项目、江西省教育厅科技项目（GJJ10681）和大学生创新计划项目 （）
