Patent ID: 9395333
Filing Date: 2016-07-19
CPC Classification: G01N

Claim Text:
1. A chemical detection and analysis system, comprising: an ion mobility spectrometer (IMS) device having a drift tube that includes a first end with a sample inlet and a second end that is downstream from the first end, wherein ions from ionization of a sample input via the sample inlet are introduced into the drift tube, and wherein the drift tube includes IMS electrodes that electrostatically propel the ions through the drift tube in a direction along an axis of the drift tube; and a high field asymmetric waveform ion mobility spectrometer (FAIMS) device embedded along the axis of the drift tube of the IMS device, wherein the FAIMS device is field-driven, the electrodes of the drift tube of the IMS device electrostatically propelling the ions through the FAIMS device in the direction along the axis of the drift tube, and wherein the FAIMS device includes FAIMS electrodes that cause oscillations of the ions in the direction along the axis of the drift tube resulting in a net change in velocity of at least some of the ions that are being propelled by the IMS electrodes in the direction along the axis of the drift tube.