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. 17, 1999
Filed:
Sep. 29, 1997
Applicant:
Inventors:
Stellan Hjerten, Uppsala, SE;
Jia-Li Liao, San Pablo, CA (US);
Assignee:
Bio-Rad Laboratories, Inc., Hercules, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210656 ; 210748 ; 2101982 ; 204542 ; 204545 ; 204551 ;
Abstract
Peak resolution in reversed-phase electrochromatography is improved in either of two alternative ways. The first is by a stepwise increase in the concentration of acetonitrile or other equivalent buffer constituent or modifier after the sample has been loaded, and the second is the inclusion of a surfactant in the mobile phase.