Method and apparatus for chromatography-high field...

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G01N 30/00 (2006.01) G01N 27/64 (2006.01) G01N 30/62 (2006.01) H01J 49/00 (2006.01) G01N 30/72 (2006.01)

Patent

CA 2440429

Method and apparatus for chromatographic high field asymmetric waveform ion mobility spectrometry, including a gas chromatographic analyzer section intimately coupled with an ionization section, an ion filter section, and an ion detection section, in which the sample compounds are at least somewhat separated prior to ionization, and ion filtering proceeds in a planar chamber under influence of high field asymmetric periodic signals, with detection integrated into the flow path, for producing accurate, real-time, orthogonal data for identification of a broad range of chemical compounds.

L'invention concerne un procédé et un dispositif de chromatographie couplée à la spectrométrie de mobilité ionique à forme d'onde asymétrique à champ élevé. Ce dispositif comprend une section d'analyse de chromatographie en phase gazeuse couplée à une section d'ionisation, une section de filtration ionique et une section de détection ionique. Dans ce dispositif, les composés à traiter sont au moins en partie séparés avant l'ionisation et la filtration ionique s'effectue dans une chambre plane sous l'influence de signaux périodiques asymétriques à champ élevé. La détection est intégrée dans le circuit du flux, ce qui permet d'obtenir des données orthogonales précises en temps réel destinées à l'identification d'une large gamme de composés chimiques.

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