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:
May. 05, 1992
Filed:
Feb. 28, 1990
Applicant:
Inventor:
Stephen E Moring, Sunnyvale, CA (US);
Assignee:
Applied Biosystems, Inc., Foster City, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2041801 ; 2041833 ; 2042 / ;
Abstract
A junction reactor that aligns a pair of capillaries substantially collinearly, end-to-end that allows a small gap to be produced between these two ends. An applied voltage difference between the other ends of these two capillaries produces in the gap electric field lines that extend across the gap. Empirical evidence shows that the gap introduces only a small reduction in resolution of an electrophoretic or electrochromatographic separation. The gap enables sample liquid to be coupled between capillaries of different internal diameters and enables on-capillary reactions such as attaching a fluorescent tag to a sample components.