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Rapid online analysis of trace elements in steel using a mobile fiber-optic laser-induced breakdown spectroscopy system 被引量:5
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作者 Qingdong ZENG Guanghui CHEN +7 位作者 Xiangang CHEN Boyun WANG Boyang WAN Mengtian YUAN Yang LIU Huaqing YU Lianbo GUO Xiangyou LI 《Plasma Science and Technology》 SCIE EI CAS CSCD 2020年第7期98-104,共7页
A mobile fiber-optic laser-induced breakdown spectrometer(FO-LIBS) prototype was developed to rapidly detect a large quantity of steel material online and quantitatively analyze the trace elements in a large-diameter ... A mobile fiber-optic laser-induced breakdown spectrometer(FO-LIBS) prototype was developed to rapidly detect a large quantity of steel material online and quantitatively analyze the trace elements in a large-diameter steel tube.Twenty-four standard samples and a polynomial fitting method were used to establish calibration curve models.The R^2 factors of the calibration curves were all above 0.99,except for Cu,indicating the elements’ strong self-absorption effect.Five special steel materials were rapidly detected in the steel mill.The average absolute errors of Mn,Cr,Ni,V,Cu,and Mo in the special steel materials were 0.039,0.440,0.033,0.057,0.003,and0.07 wt%,respectively,and their average relative errors fluctuated from 2.9% to 15.7%.The results demonstrated that the performance of this mobile FO-LIBS prototype can be compared with that of most conventional LIBS systems,but the more robust and flexible characteristics of the FO-LIBS prototype provide a feasible approach for promoting LIBS from the laboratory to the industry. 展开更多
关键词 laser-induced breakdown spectroscopy optical fiber rapid analysis online detection STEEL
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杜仲活性成分四氢呋喃骈四氢呋喃型木脂素的快速分析 被引量:3
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作者 费嘉 乔善义 郭继芬 《分析测试学报》 CAS CSCD 北大核心 2004年第z1期47-50,共4页
  杜仲(eucommia ulmoides Oliv)具有补肝肾、强筋骨、安胎和降压等功效.其中四氢呋喃骈四氢呋喃型木脂素松脂素二葡萄糖苷是其主要的降压有效成分;丁香脂素二葡萄糖苷在治疗淋巴细胞白血病中有较好的活性[1].……
关键词 Mass spectrometry rapid analysis Tetrahydrofurofuranlignan Eucommia ulmoides Oliv
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