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:
Jun. 14, 1988
Filed:
Mar. 11, 1986
Roy D Rocklin, Sunnyvale, CA (US);
Dionex Corporation, Sunnyvale, CA (US);
Abstract
A method of ion chromatography in which the sample passes through a chromatographic column, a suppressor, and a conductivity detector, using a gradient electrolyte eluent. A non-ionic polyhydroxy compound is added with the eluent to the chromatographic column at a concentration inversely related to the concentration of the electrolyte which increases with time. The effluent is passed through a membrane suppressor for the conductivity of the electrolyte. The regenerant stream in the suppressor includes a complexing agent (boric acid) which passes through the membrane into the effluent to form highly ionized complex which counterbalances the increased background conductivity of the electrolyte to stabilize the background conductivity in the conductor.