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:
Jul. 09, 2019
Filed:
Dec. 15, 2017
Thermo Finnigan Llc, San Jose, CA (US);
Bennett S. Kalafut, San Jose, CA (US);
Rae Ana Snyder, San Jose, CA (US);
THERMO FINNIGAN LLC, San Jose, CA (US);
Abstract
A method of analyzing a sample by high-field asymmetric waveform ion mobility-mass spectrometry (FAIMS-MS) is disclosed. An ion beam containing ions of a plurality N of isomers is directed into a FAIMS device. The compensation voltage (CV) at which the FAIMS device is operated is varied among a plurality M of values. For each of the M CV values, an intensity of the ion beam transmitted by the FAIMS device, or product ions derived therefrom, is measured at a mass-to charge ratio corresponding to the plurality N of isomers. The intensities of each of the plurality N of isomers is determined using a set of linear equations, relating the weighted measured intensity values at each value M of the CV and the intensities of each of the N isomers when the FAIMS device is in a non-separation condition.