Abstract: Disclosed herein are systems, methods and apparatus, for detection and identification of analytes in a volatilized or volatilizable sample, using the mobility-based signature that is produced when the volatilized sample is passed through a differential ion mobility spectrometry (DMS) device.

Abstract: Method and apparatus for identification of chemical compounds in a sample based on differences in ion mobility, wherein the filter and detector electrodes are formed radially spaced on facing substrates.

Abstract: System for detection and analysis of gas samples in fieldable real-time Differential Mobility Spectrometry (DMS) chemical sensor system which uses non-radioactive ion source for monitoring and detecting NOx emissions; provides reliable methods for detecting and monitoring of anthropogenic sources of NOx; also detection of NO in exhaled breath for patient health diagnosis.

Abstract: System for control of ion species behavior in a time-varying filter field of an ion mobility-based spectrometer to improve species identification, based on control of electrical and environmental aspects of sample analysis.

Abstract: A pancake field asymmetric waveform ion mobility spectrometer (FAIMS) uses radial filtering and detection of selection ion species in a compact pancake package to provide enhanced resolution and fast response time. A sample containing a mixture of compounds is ionized in a chamber and then ion species representing the various compounds in the sample are passed to a FAIMS ion filter. Compensated FAIMS filter fields dictate passage through the filter of ion species of certain mobility behavior and trajectory. The detector detects ions that have passed through the FAIMS filter wherein the filter and detector electrodes are formed radially spaced on facing substrates.

Abstract: Method and apparatus for the analysis of compounds using electrospray in high field asymmetric ion mobility spectrometry.

Abstract: A micromechanical field asymmetric ion mobility filter for a detection system includes a pair of spaced substrates defining between them a flow path between a sample inlet and an outlet; an ion filter disposed in the path and including a pair of spaced filter electrodes, one electrode associated with each substrate; and an electrical controller for applying a bias voltage and an asymmetric periodic voltage across the ion filter electrodes for controlling the paths of ions through the filter.

Abstract: In a system for chemical analysis, an RF-driven plasma ionization device including a pair of spaced-apart and plasma-isolated electrodes, the electrodes are connected to a power source wherein the electrodes act as plates of a capacitor of a resonant circuit, the gas electrically discharges and creates a plasma of both positive and negative ions, and the voltage is applied as a continuous alternating waveform or as a series of pulses, such as a packet waveform.

Abstract: An apparatus for identification of chemical species by measurement of mobility as a function of high electric field and for generating unique compound-dependent signatures based on ion mobility at a plurality of peak RF voltages for a given compensation. The resulting detection data is compared against a library of data in order to identify a detected chemical species.