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. 22, 1992
Filed:
Jan. 11, 1990
Applicant:
Inventor:
Yoossef Tehrani, Lincoln, NE (US);
Assignee:
Isco, Inc., Lincoln, NE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; B01D / ;
U.S. Cl.
CPC ...
2042 / ; 2041801 ;
Abstract
To inject sample into an electrophoresis capillary tube having a separating medium, the end of the capillary tube is inserted in an injection block with a liquid tight seal and a syringe is inserted into the block to apply fluid to the end of the capillary tube. The injection block provides split flow injection. A high voltage isolated switching arrangement switches the end of the capillary from the injection block to buffer at a high electrical potential to accomplish the electrophoretic separation. A second injection block is used to purge the capillary tube and can be used to supply separating medium as needed.