Abstract: A pre-filter assembly including a differential mobility spectrometer (DMS) that is configured to be in-line with a mass spectrometer (MS) such that the MS continuously receives carrier flow from the DMS when the DMS filtering fields are removed.

Abstract: The invention relates generally to systems, methods and devices for analyzing samples and, more particularly, to systems using tandem differential mobility spectrometers in combination with a mass analyzer to enhance the analysis process of constituents of a sample.

Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, to sample detection using multiple detection and analytical techniques in combination.

Abstract: A compact integrated ion mobility based analysis system includes at least one gas chromatograph (GC) column that receives a sample and elutes constituents of the sample where each of the eluted constituents are temporally separated from each other The system also includes at least one ion mobility based sample analyzer that analyzes the eluted constituents based on their ion mobility characteristics. The system further includes a controller that selectively adjusts the temperature within at least one GC column over a period of time and selectively adjusts the temperature within at least one ion mobility based sample analyzer over a period of time.

Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, in some embodiments to compact GC-DMS systems, methods, and devices employing enhanced GC column temperature control and configurations to identify various sample constituents.

Abstract: The invention provides, in various embodiments, systems and methods relating to controlling ion behavior in an ion-based analysis system.

Abstract: An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and, thereby, reduce analyzer size, cost, and power requirements.

Abstract: Disclosed herein are systems, methods and apparatus, for detection and identification of chemical warfare agents (CWAs) using a differential mobility spectrometer.

Abstract: An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and, thereby, reduce analyzer size, cost, and power requirements.

Abstract: The invention, in various embodiments, is directed to a method for analyzing a sample using a solid-state flow generator that provides a flow of effluent including the sample through an ion mobility based filter.

Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, in some embodiments to compact GC-DMS systems and methods, and techniques for correcting nonlinear characteristics in an ion mobility based analyzer.

Abstract: The invention, in various embodiments, is directed to an analyzer using a solid-state flow generator to provide effluent flow along a flow path and deliver a sample to an ion mobility based filter and detector for analysis.

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: A ion mobility-based analyzer system including a first ion mobility-based filter for passing selected ions through a time-varying field where the time-varying field being compensated by an adjustable compensation setting. The analyzer also includes a second ion mobility-based filter for receiving a first portion of ions from the first ion mobility-based filter. The second ion mobility-based filter includes a voltage gradient for separating ions of the first portion of ions where the ions have associated retention times based on their times of flight through the voltage gradient. The second ion mobility-based filter includes a detector for detecting the ions at their retention times. The analyzer system further includes a display that displays the detected ions in a plot relating the retention times of the ions in the second ion mobility-based filter with compensation settings of the first ion mobility-based filter.

Abstract: A system for analyzing one or more ion species of a sample including a first ion mobility filter associated with a first flow path for passing first ions of the sample, a second ion mobility filter associated with a second flow path for passing second ions of the sample, a first outlet from the first flow path for passing a portion of the first ions from the first flow path to the second flow path, and a first outlet from the second flow path for removing neutral particles from the second flow path where the first outlet from the second flow path is upstream of the second ion mobility filter in relation to the ion flow in the second flow path.

Abstract: The invention provides, in various embodiments, systems and methods relating to enhancing the filtering and detection capability of ion mobility based systems by various techniques to counteract a charge buildup in the ion mobility based system.

Abstract: An RF-driven plasma source, including a pair of spaced-apart plasma electrodes, wherein the electrodes act as plates of a capacitor, the gas electrically discharges and creates a plasma of both positive and negative ions, in a clean process that enables efficient sample analysis, with preferred isolated sample photo-ionization, reduced-power operation and also including signal detection with modulated drive electronics.

Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, in some embodiments to compact GC-DMS systems, methods, and devices employing enhanced GC column temperature control and configurations to identify various sample constituents.

Abstract: Disclosed herein are systems, methods and apparatus, for detection and identification of chemical warfare agents (CWAs) using a differential mobility spectrometer.

Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, to sample detection using enhanced condition control and data interpretation.