Pulsed field capillary electrophoresis
Patent 5122248 Issued on June 16, 1992. Estimated Expiration Date: 
May 18, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 18, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesHigh performance microcapillary gel electrophoresis Velocity modulated capillary electrophoresis analysis system Fractionation and sample loading by cassette in capillary electrophoresis Process for preparation of electrophoresis Flow-rate-controlled surface-charge coating for capillary electrophoresis Patent #: 5015350 InventorsAssigneeApplicationNo. 525532 filed on 05/18/1990US Classes:204/453, With injection204/455, Using gel-filled capillary204/458, Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)204/604, With injector204/605, Gel filled204/609Plural rapid changes in direction of electric field (at least 1,000 times total and at more than 1/sec) (e.g., pulsed field, etc.)ExaminersPrimary: Niebling, John F.Assistant: Koestner, Caroline Attorney, Agent or FirmInternational ClassesC25B 001/00C25B 007/00 B01D 061/42 AbstractApparatus and method for conducting electrophoresis in a capillary tube under the influence of a pulsed electric field. Apparatus for separating and detecting molecular species of a sample in a conductive medium includes a capillary tube for containing conductive medium, means for introducing a sample into a conductive medium-filled capillary tube, means for applying a pulsed electric field across the conductive medium-filled capillary tube between its ends, and means for detecting constituent molecular species of a sample in a conductive medium-filled capillary tube as they traverse the tube. A method for separating and detecting molecular species of a sample in a conductive medium includes the steps of introducing the sample into a capillary tube filled with conductive medium, applying a pulsed electric field of up to 500 volts/centimeter between the ends of the capillary, and detecting the constituent molecular species of the sample as they traverse the capillary.Other References
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