Patent ID: 9068943
Filing Date: 2015-06-30
Classification: G01N,H01J

Abstract:
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; a gate grid coupled to the second end of the drift tube; and a high field asymmetric waveform ion mobility spectrometer (FAIMS) device, being of a device type different from the IMS device, coupled downstream from the IMS device and downstream from the gate grid, wherein the ions from the drift tube are selectively gated to yield gated ions via control of at least one voltage pulse to the gate grid, and wherein the gated ions are transported from the gate grid to the FAIMS device for analysis by the FAIMS device.