Ion Mobility Spectrometer

A method and apparatus are disclosed for improving ion mobility spectrometry by using a fast and spatially wide ion gate based on local RF field barrier opposed to a switching DC field. The improvement accelerates the ion mobility analysis and improves charge throughput and dynamic range of the IMS....

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Bibliographic Details
Main Author VERENCHIKOV ANATOLY N
Format Patent
LanguageEnglish
Published 25.09.2014
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A method and apparatus are disclosed for improving ion mobility spectrometry by using a fast and spatially wide ion gate based on local RF field barrier opposed to a switching DC field. The improvement accelerates the ion mobility analysis and improves charge throughput and dynamic range of the IMS. The invention is particularly suited for rapid dual gas chromatography. In one important embodiment, the accelerated IMS is coupled to a multi-reflecting time-of-flight mass spectrometer with a fast encoded orthogonal acceleration. There are described methods of comprehensive and orthogonal separation in multiple analytical dimensions.
Bibliography:Application Number: US201214356015