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:
Dec. 18, 2007
Filed:
Nov. 30, 2005
Steven M. Fischer, Hayward, CA (US);
Darrell L. Gourley, San Francisco, CA (US);
Patricia H. Cormia, San Jose, CA (US);
James L. Bertsch, Palo Alto, CA (US);
Karl Hanold, Huntington Beach, CA (US);
Steven M. Fischer, Hayward, CA (US);
Darrell L. Gourley, San Francisco, CA (US);
Patricia H. Cormia, San Jose, CA (US);
James L. Bertsch, Palo Alto, CA (US);
Karl Hanold, Huntington Beach, CA (US);
Agilent Technologies, Inc., Santa Clara, CA (US);
Abstract
An atmospheric pressure ion source, e.g. for a mass spectrometer, that produces ions by atmospheric pressure photoionization (APPI). It includes a vaporizer, a photon source for photoionizing vapor molecules upon exit from the vaporizer, a passageway for transporting ions to, for example, a mass spectrometer system, and a means for directing the ions into the passageway. The center axis of the vaporizer and the center axis of the passageway form an angle that may be about 90 degrees. Included in the invention is a method for creating ions by atmospheric pressure photoionization along an axis and directing them into a passageway oriented at an angle to that axis.