The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2004
Filed:
Feb. 07, 2003
Ionalytics Corporation, Ottawa, CA;
Abstract
Disclosed are an apparatus and a method for separating ions in the gas phase. An apparatus according to the instant invention includes a high field asymmetric waveform ion mobility spectrometer including an inner electrode having an outer surface and a length. The apparatus further includes an outer electrode having an inner surface and a length and surrounding the inner electrode over at least a portion of the length of the inner electrode, the inner electrode and the outer electrode defining an analyzer region therebetween and being disposed in a spaced apart arrangement for allowing ions to propagate therebetween. The outer electrode also includes an outlet from the analyzer region and at least a first ion inlet and a second distinct ion inlet into the analyzer region. The first ion inlet and the second distinct ion inlet are each for communicating with at least one ionization source. The inner electrode and the outer electrode are for providing an electric field within the analyzer region resulting from application of an asymmetric waveform voltage to at least one of the inner electrode and the outer electrode and from application of a compensation voltage to at least one of the inner electrode and outer electrode, the electric field for selectively transmitting ions within the analyzer region between at least one of the first ion inlet and the second distinct ion inlet and the outlet.