ION MOBILITY SYSTEM COMPRISING TWO IMS CELLS OPERATED AT DIFFERENT POLARITIES

An ion mobility spectrometer system includes two cells (1) and (2) driven by a drive unit (12) so that the cells operate at opposite polarities and are switched between different polarities either at regular intervals or in response to detection of a substance in one cell. Two reagents are supplied...

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Bibliographic Details
Main Authors WYNN, PAUL GRANT, BREACH, JAMES ANDREW
Format Patent
LanguageEnglish
French
Published 09.04.2013
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:An ion mobility spectrometer system includes two cells (1) and (2) driven by a drive unit (12) so that the cells operate at opposite polarities and are switched between different polarities either at regular intervals or in response to detection of a substance in one cell. Two reagents are supplied to both cells (1) and (2), one promoting detection of a substance in the positive mode and the other promoting detection of a substance in the negative mode so that there is no need to switch reagents when the polarity changes. L'invention concerne un système spectrométrique de mobilité ionique comprenant deux cellules (1 et 2) commandées par une unité de commande (12) de sorte que ces cellules fonctionnent à des polarités opposées et changent de polarité à des intervalles réguliers ou en réponse à la détection d'une substance dans une cellule. Deux réactifs sont acheminés vers ces cellules (1 et 2), l'un favorisant la détection d'une substance en mode positif et l'autre favorisant la détection d'une substance en mode négatif. Ainsi, il n'est pas nécessaire de changer de réactif lors d'un changement de polarité.
Bibliography:Application Number: CA20042527979