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. 24, 2001
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Joanna M. Hunter, Castro Valley, CA (US);
Hua Lin, Fremont, CA (US);
Christopher H. Becker, Palo Alto, CA (US);
Assignee:
GeneTrace Systems, Inc., Alameda, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 4/404 ;
U.S. Cl.
CPC ...
H01J 4/404 ;
Abstract
A sample preparation method is disclosed for volatilization and mass spectrometric analysis of nonvolatile high molecular weight molecules. Photoabsorbing molecules having significant sublimation rates at room temperature under vacuum, and preferably containing hydroxy functionalities, are disclosed for use as matrices in matrix-assisted laser desorption/ionization mass spectrometry. The samples are typically cooled in the mass spectrometer to temperatures significantly below room temperature.