Experimental observation of fine secular frequency resonance oscillation with a rectilinear ion trap mass spectrometer  

直线型离子阱质谱仪精细久期频率共振实验观察.

作　　者：Lixin Shan Zuojian Zhang Zhiyang Wei Yongze Gao Zhiyuan Luo Shiyu Cheng Jinian Shu 单利欣;张作建;魏治洋;高永泽;罗志元;程诗宇;束继年(中国科学院大学环境材料与污染控制技术研究中心,北京101408;挥发性有机物污染控制材料与技术国家工程实验室,北京101408)

机构地区：[1]Research Center for Environmental Material and Pollution Control Technology,University of Chinese Academy of Sciences,Beijing 101408,China [2]National Engineering Laboratory for VOCs Pollution Control Material&Technology,Beijing 101408,China

出　　处：《Chinese Journal of Chemical Physics》2024年第6期792-796,I0042,共6页化学物理学报(英文)

基　　金：supported by the National Natural Science Foundation of China(No.22076184);Fundamental Research Funds for the Central Universities,Beijing Municipal Science&Technology Commission(Z181100003818008).

摘　　要：The mass resolution of the ordinary ion trap mass spectrometer derived from the quadrupole mass spectrometer usually ranges from hundreds to thousands.In this study,the fine secular frequency resonance oscillation was observed with a rectilinear ion trap mass spectrometer.The FWHM of the responding resonance secular frequency of benzene was 0.012 kHz.The corresponding mass resolution was 8600 m/Δm for benzene(m/z=78).The mass spectrometer with secular frequency scanning has a linear response to benzene in the concentration range from 200 ppbv to 10000 ppbv.This study shows a new feature of the secular frequency scanning for ion trap mass spectrometers.离子阱质谱仪由四级杆质谱仪衍化而来,分辨率通常在几百到几千.本研究利用自主研制的直线型离子阱质谱仪观察到苯离子的精细久期频率共振现象.实验结果显示苯离子共振峰的半峰宽为0.012 kHz,对应的质量分辨率为m/△m=8600.在200~10000 ppbv浓度范围内,该直线型离子阱质谱仪对苯具有良好的线性响应.本研究发现了离子阱质谱仪久期频率扫描模式的新特点.

关 键 词：Fine secular frequency Resonance oscillation Mass resolution Rectilinear ion trap mass spectrometer 

分 类 号：F42[经济管理—产业经济]