B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 59/44 (2006.01) G01N 27/64 (2006.01) H01J 49/00 (2006.01)
Patent
CA 2401610
The present invention relates to an improved ion mobility spectrometer and method for the analysis of chemical samples. The improvements are realized in the optimization of resolution and sensitivity. Increases in sensitivity are realized by preserving a narrow spatial distribution of migrating ions through the use of periodic/hyperbolic field focusing. Additionally, novel combinations and configurations of components are used to simultaneously maintain a well defined ion packet and preserve sample throughput to the detector.
La présente invention concerne un spectromètre de mobilité ionique amélioré et un procédé pour l'analyse d'échantillons chimiques. Les améliorations découlent de l'optimisation de la résolution et de la sensibilité. Les augmentations de sensibilité sont obtenues par le maintien d'une distribution spatiale étroite des ions migrants grâce au recours à la focalisation en champs périodiques ou hyperboliques. En outre, on a recours à de nouvelles combinaisons et configurations des composants pour, d'une part conserver un paquet d'ions bien défini et, d'autre part maintenir le débit de l'échantillon vers le détecteur.
Fuhrer Katrin
Gillig Kent
Gonin Marc
Russell David H.
Schultz John A.
Borden Ladner Gervais Llp
Ionwerks Inc.
The Texas A. & M. University System
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