QUADRUPOLE MASS-SPECTROMETRY IN COMBINATION WITH LITHIUM ION ATTACHMENT FOR SAMPLING AT ATMOSPHERIC-PRESSURE - POSSIBLE COUPLING TO SUPERCRITICAL FLUID CHROMATOGRAPHY

被引:35
作者
FUJII, T
机构
[1] National Institute for Environmental Studies, Ibakaki 305, Tsukuba
关键词
D O I
10.1021/ac00031a013
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A novel device has been developed which permits sampling at atmospheric pressure followed by soft ionization mass spectrometry. Sample gases are introduced through a small aperture at atmospheric pressure into an ionization reaction chamber containing a lithium ion emitter. In this ionization reaction chamber, lithium ion attachment to the molecule takes place. The ionized adduct is detected by a quadrupole mass spectrometer. With this instrument incorporating soft ionization, it should be possible at atmospheric pressure to detect any chemical species, including radical intermediates, on a real time basis. In addition, the coupling to a supercritical fluid, gas, and liquid chromatograph is feasible.
引用
收藏
页码:775 / 778
页数:4
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