A novel aircraft‐based tandem mass spectrometer for atmospheric ion and trace gas measurements
A novel aircraft‐based tandem mass spectrometer for atmospheric ion and trace gas measurements
复制标题
一种用于大气离子和痕量气体测量的新型机载串联质谱仪
DOI：
10.1063/1.1144455
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
F. Arnold
中科院分区：
文献类型：
--
作者：
O. Möhler;T. Reiner;F. Arnold
一种新型的机载三重四极杆质谱仪（TQMS）已经被开发用于改进大气离子和痕量气体的检测和碰撞分析。该仪器还适用于实验室碰撞诱导解离（CID）测量、离子-分子反应研究和分析应用。通过化学电离质谱法（CIMS）的高灵敏度和选择性痕量气体检测也可以使用新型离子注入技术。通过比较大气碎片离子光谱与在类似于基于飞机的CID测量的条件下在实验室中测量的已知离子的碎片离子光谱，可以对大气离子进行非生物识别。CID过程的总效率，即CID模式下碎片离子信号与正常质量扫描模式下母离子信号的比值，在10−3到5×10−2之间变化，取决于质量选择和质量分析的质量分辨率。
A novel aircraft‐based triple‐quadrupole mass spectrometer (TQMS) has been developed for improved detection and collisional analysis of atmospheric ions and trace gases. The instrument is also suitable for laboratory collision‐induced dissociation (CID) measurements, studies of ion–molecule reactions, and analytical applications. Highly sensitive and selective trace gas detection by chemical ionization mass spectrometry (CIMS) methods is also possible using a novel ion injection technique. Unambiguous identification of atmospheric ions is possible by comparing atmospheric fragment ion spectra with the fragment ion spectra of known ions measured in the laboratory under conditions similar to those of the aircraft‐based CID measurement. The overall efficiency of the CID process, that is, the ratio of the fragment ion signal in the CID mode and the signal of the parent ion in the normal mass scan mode, varies between some 10−3 and 5×10−2, depending on the mass resolution of the mass selecting and mass analyzi...