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1. 发明授权

US08471199B1 Portable mass spectrometer with atmospheric pressure interface 有权
标题翻译：便携式质谱仪，带有大气压力界面
公开(公告)号：US08471199B1
公开(公告)日：2013-06-25
申请号：US13441532
申请日：2012-04-06
申请人： Vladimir M. Doroshenko , Victor V. Laiko , Alexander S. Misharin
发明人： Vladimir M. Doroshenko , Victor V. Laiko , Alexander S. Misharin
IPC分类号： B01D59/44 , H01J49/00
CPC分类号： H01J49/0013
摘要： A portable mass spectrometer having an atmospheric pressure interface for introducing ions generated at ambient pressure gas conditions into a vacuum of the mass spectrometer. The mass spectrometer has a vacuum chamber having at least one vacuum section and at least one gas inlet for directing the ambient pressure gas including the ions into the at least one vacuum section. The at least one gas inlet has a gas passage channel of a length L and a limiting cross section S with a ratio of L/S being less than 20,000 cm−1. The mass spectrometer has a radio frequency (RF) ion guide in the at least one vacuum section positioned for collecting the ions from the at least one gas inlet and transmitting the ions further to a mass analyzer for analyzing the ions transmitted from the ion guide.
摘要翻译：一种便携式质谱仪，具有用于将在环境压力气体条件下产生的离子引入质谱仪真空的大气压界面。质谱仪具有至少一个真空部分的真空室和至少一个气体入口，用于将包括离子的环境压力气体引导到至少一个真空部分中。至少一个气体入口具有长度为L的气体通道通道和L / S的比例小于20,000cm -1的限制横截面S. 所述质谱仪在所述至少一个真空部分中具有射频（RF）离子引导件，定位成用于从所述至少一个气体入口收集离子，并将所述离子进一步传输到质量分析器，以分析从所述离子导向器传输的离子。

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