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:
May. 06, 2014
Filed:
Apr. 27, 2011
Nishant Chetwani, Mishawaka, IN (US);
Catherine Cassou, Tiburon, CA (US);
David Go, South Bend, IN (US);
Hsueh-chia Chang, Granger, IN (US);
Nishant Chetwani, Mishawaka, IN (US);
Catherine Cassou, Tiburon, CA (US);
David Go, South Bend, IN (US);
Hsueh-Chia Chang, Granger, IN (US);
University of Notre Dame du Lac, Notre Dame, IN (US);
Abstract
An alternating current electrospray mass spectrometry device includes an electrospray device having at least one emitter providing a passageway for transmission of an analyte sample. At least one conductive element is in electrical communication with the at least one emitter. A power source generates an alternating current electric field to form a liquid cone at a tip of the emitter and ionizes the analyte sample present in the liquid cone. The frequency of the electric field entrains low mobility ions in the liquid cone. The AC electric field causes the emitter to discharge the liquid cone as a liquid aerosol drop, and a mass spectrometry device analyzes the ionized analyte sample to determine the composition of the contained analyte sample.