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:
Dec. 10, 2002
Filed:
May. 23, 2000
Gary B. Gordon, Saratoga, CA (US);
Tom A. van de Goor, Foster City, CA (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
In a differential condition, an electrophoresis system antisynchronously drives a longitudinally-separated pair of contactless drive electrodes, both of which are coupled to a detection electrode through a separation channel. In this condition, the system provides a series of peaks readout in ITP-separation mode. In a direct condition, the system antisynchronously drives a pair of drive electrodes, only one of which is coupled to the detection electrode through the channel; the other is coupled to the detection electrode but not though the channel. In this condition, the system provides a series of peaks readout in CZE mode. In either case, the antisynchronous drive enhances the detection signal by canceling at the detection electrode signal components associated with the AC drive source. Similar advantages are achieved for a capillary differential electrophoresis system and for a planar direct electrophoresis system.