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:
Aug. 03, 2004
Filed:
May. 31, 2002
Houle Wang, Auburn, CA (US);
Kerry D. Nugent, Penn Valley, CA (US);
Michrom BioResources, Inc., Auburn, CA (US);
Abstract
A tandem mass spectrometer is provided including two mass analyzers with an ion fragmentation device interposed between the two mass analyzers. The first mass analyzer is a non-destructive mass analyzer, such as an ion trap, to initially collect and hold parent ions and sequentially release parent ions of known mass to charge ratio. The released parent ions pass through the fragmentation device, such as a collision cell, where the parent ions are fragmented into daughter ions. These daughter ions then pass on to the second mass analyzer. The second mass analyzer is of a high speed full spectrum type, such as a time of flight analyzer, so that a full spectrum of mass data is provided for the daughter ions, to go with parent ion mass spectrum data from the first mass analyzer.