%0 Journal Article
%T Study on the improvement of analysis precision for laser induced breakdown spectrometry<br>激光诱导击穿光谱法分析精度提高的研究
%A YUAN Liang-jing
%A SHI Xiao-xi
%A LIAN Zhi-qiang
%A ZHANG Sheng-kun
%A <br>袁良经
%A 石小溪
%A 连志强
%A 张胜坤
%J 冶金分析
%D 2012
%I 
%X The analytical precision of laser induced breakdown spectrometry(LIBS) was influenced by severe signal fluctuation,strong continuous emission interference complex spectrum,laser energy fluctuation and bad repeatability.In this study,based on the self-developed laser spectrometer,the spatial resolution and data stabilization was taken in to account with laser beam adjusting technique;the analytical sensitivity and lower limit of detection was improved with gating integration techniques;the reliability of data was improved by data screening technology.Thus,the analytical precision of LIBS was enhanced.Fifteen elements including C,Si,Mn,P,S,B,Mo,Ni,Cr,V,Cu,Ti,Al,W and Fe in amiddle-low alloy steel were determined by LIBS.Except for P and B,the relative standard deviations of determination results were all less than 10 %.The analytical precision was better than those of LIBS reported in references.
%K laser induced breakdown spectrometry
%K laser beam adjusting
%K gating integration
%K data intensity screening<br>激光诱导击穿光谱法
%K 激光光束调整
%K 门控积分
%K 数据强度筛选
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=2D0EECBAB3CF5455&jid=801503686266675EACDCAD01FB961264&aid=09A83131469FC5D4C10341E8874F163C&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=CA4FD0336C81A37A&eid=94C357A881DFC066&journal_id=1000-7571&journal_name=冶金分析&referenced_num=0&reference_num=0