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:
Sep. 03, 2002
Filed:
Oct. 13, 1999
Applicant:
Inventors:
James M. Anderson, Jr., Arlington Heights, IL (US);
Raaidah Saari-Hordhaus, Mundelein, IL (US);
Bart C. Benedict, Arlington Heights, IL (US);
Carl W. Sims, St. Paul, MN (US);
Yuri Gurner, Mendota Hts, MN (US);
Hung Anthony Pham, Waukegan, IL (US);
Assignee:
Alltech Associates, Inc., Deerfield, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/508 ; G01N 3/002 ; G01N 2/518 ; G01N 1/506 ; G01N 3/300 ; G01N 3/348 ; G01N 2/702 ; G01N 2/706 ; G01N 2/712 ; B01D 1/900 ; B01D 1/508 ; B01D 2/400 ; B01J 4/900 ;
U.S. Cl.
CPC ...
G01N 2/508 ; G01N 3/002 ; G01N 2/518 ; G01N 1/506 ; G01N 3/300 ; G01N 3/348 ; G01N 2/702 ; G01N 2/706 ; G01N 2/712 ; B01D 1/900 ; B01D 1/508 ; B01D 2/400 ; B01J 4/900 ;
Abstract
Methods and devices for removing gas prior to detecting analyte ions are discolored. In one aspect of the invention, gas by-products from the suppression of the mobile phase are removed prior to detecting analyte ions at a detector. In another aspect, the amount of dissolved carbonic acid is reduced in a suppressed carbonate/bicarbonate mobile phase by removing carbon dioxide gas.