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. 28, 2009
Filed:
Apr. 12, 2006
Jun Cheng, San Jose, CA (US);
Petr Jandik, Los Gatos, CA (US);
Xiaodong Liu, Cupertino, CA (US);
Christopher A. Pohl, Union City, CA (US);
Jun Cheng, San Jose, CA (US);
Petr Jandik, Los Gatos, CA (US);
Xiaodong Liu, Cupertino, CA (US);
Christopher A. Pohl, Union City, CA (US);
Dionex Corporation, Sunnyvale, CA (US);
Abstract
In one embodiment, the present invention is directed to a pulsed electrochemical detection method comprising (a) flowing a liquid sample stream including at least one analyte past a working electrode in a flow-through cell; (b) applying at least three pulsed electrical potentials to the working electrode, (1) a first conditioning potential, (2) a second detection and oxidative cleaning potential, and (3) a third reductive cleaning potential, said second potential being higher than said first and third potentials and said first potential being higher than said third potential; and (c) detecting the output from said working electrode during the time period of applying said second potential.