Patent ID: 9513266
Filing Date: 2016-12-06
CPC Classification: G01N,H01J

Claim Text:
1. A GC-IMS system, comprising: a gas chromatograph, an IMS comprising: an ionization region for ionizing a gas to generate ions, and a reaction region which is adjacent to and different from the ionization region, is disposed downstream of the ionization region in an ion drift direction, and is configured for combining the ions with a sample, a sample transfer device which connects the gas chromatograph to the reaction region and is configured to transfer the sample from the gas chromatograph to the reaction region directly by bypassing the ionization region, and a sweeping gas inlet which is formed in the IMS and is configured to flow a sweeping gas with no sample through the ionization region into the reaction region of the IMS, wherein the ions generated in the ionization region are moved to the reaction region under a sweeping action of the sweeping gas.