Excellims Technology

Excellims' fundamental ion mobility spectrometry technology advances cover a broad range of novel ion mobility spectrometer instrument designs and analysis methods, aimed at solving real world problems. Its' basic high performance IMS system provides superior sensitivity and resolution compared to other commercially available IMS systems. In addition to high performance single drift IMS instruments, Excellims has patented a multidimensional IMS system that provides a means to further separate ions that have already been separated in a single dimension IMS, or to do separations in different drift media on the same sample. Recently, Excellims and its collaborators have demonstrated that by modifying the drift gas with low concentrations of selected chemicals, ions can be separated that otherwise would have the same drift time. This new approach has been used for separating and characterizing enantiomers and other chiral molecules in the gas phase. The new Chiral IMS system relies on gas phase ion molecular interactions between chiral analyte ions and one or more chiral modifiers introduced into the drift tube. The Chiral IMS based separation can be achieved in the millisecond time frame. This effect has also been demonstrated for other types of separations, and while in its infancy, it can be compared to changing columns in chromatography. However, in IMS it can be done on the fly, simply by making slight modifications to the drift gas.

For explosives trace detection applications, detection capability of IMS systems are further enhanced with Excellims non-contact particle and vapor sampling technology. The novel AirComb^TM sampling device allows effective dislodging and collecting of residue particles and chemical contaminants from surfaces.

US7,705,296 Ion Mobility Spectrometer Apparatus and Methods

US7,576,321 Multi-Dimensional Ion Mobility Spectrometry Methods and Apparatus

US7,696,474 Methods and Apparatus of ion Mobility Spectrometer

US7,943,901 Practical Ion Mobility Spectrometer Apparatus and Methods for Explosive Detection

US7,960,704 Compact Pyroelectric Sealed Electron Beam

US7,997,119 Chemical Sampling and Multi-Function Detection Methods and Apparatus