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:
Feb. 19, 2019
Filed:
Nov. 06, 2015
Applicant:
Indiana University Research and Technology Corporation, Indianapolis, IN (US);
Inventors:
Martin F. Jarrold, Bloomington, IN (US);
Deven L. Shinholt, Pflugerville, TX (US);
Staci N. Anthony, Bloomington, IN (US);
Andrew W. Alexander, Bloomington, IN (US);
Assignee:
The Trustees of Indiana University, Bloomington, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/42 (2006.01); H01J 49/00 (2006.01);
U.S. Cl.
CPC ...
H01J 49/4215 (2013.01); H01J 49/0031 (2013.01); H01J 49/427 (2013.01);
Abstract
A quadrupole mass filter and method for operating the filter are described. AC voltages are applied to the quadrupole to separate ions based on mass-to-charge ratio. Frequency is scanned with a simultaneous amplitude scan. Ions are measured over a broad m/z range with high resolution. A resolving power of about 1,200 was demonstrated. Ions were observed for m/z values over 150,000 Th.