分析化学2016，Vol.44Issue(6)：994-1000,7.DOI:10.11895/j.issn.0253-3820.151019
阶梯电极离子阱质量分析器的结构与性能
Structure and Property of Ladder Electrode Linear Ion Trap Mass Analyzer
摘要
Abstract
Theoretical study and experimental test of a new ion trap mass analyzer-ladder electrode linear ion trap (LeLIT) were reported. The LeLIT was composed of two pairs of ladder electrodes and one pair of end-electrodes. By optimizing the geometric structure of ladder electrodes, we optimized the electric field distribution for optimum mass analysis. Since the distribution of electric field can be controlled by the adjustment of LeLIT structure, LeLIT have better performance than rectilinear ion trap theoretically. Due to its simpler structure than hyperbolic electrode LIT, LeLIT can be easily built. In this work, the height, width and field ratio were adjusted for optimizing the property of LeLIT, and a mass resolution of 10150 was obtained when the mass scan speed was 225 Da / s for a LeLIT with X0 ×Y0 = 9 mm×5 mm dimension. The preliminary experimental result showed that the LeLIT has proper tandem mass spectrometric performance as any conventional ion trap mass analyzer.关键词
离子阱质量分析器/阶梯电极/电场分布/质量分辨率/串级质谱分析Key words
Ion trap mass spectrometer/Ladder electrode/Electric field distribution/Mass resolution/Tandem mass spectrometry analysis引用本文复制引用
谢小东,徐福兴,杨海洋,肖育,姜健,丁传凡..阶梯电极离子阱质量分析器的结构与性能[J].分析化学,2016,44(6):994-1000,7.基金项目
本文系国家科技攻关项目(Nos.2011YQ14015006,2011YQ06010003)资助This work was supported by the National Ministry of Science and Technology of China (Nos.2011YQ14015006,2001YQ06010003) （Nos.2011YQ14015006,2011YQ06010003）
