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. 16, 1980
Filed:
Feb. 12, 1979
Applicant:
Inventors:
E Melvin Gindler, Rockford, IL (US);
Nadine Miller, Rockford, IL (US);
Assignee:
Sherwood Medical Industries Inc., St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C09K / ;
U.S. Cl.
CPC ...
2323 / ; 252408 ; 424-3 ;
Abstract
An aqueous reagent system for the quantitative determination of protein is disclosed. The system contains Coomassie Brilliant Blue G-250 dye, a monobasic strong acid having a pK.sub.a of less than 3 (e.g. HCl), a polybasic phosphonic acid (e.g. NTP), a water soluble, non-ionic surfactant characterized as being a block copolymer containing terminal polyethylene oxide segments separated by a polypropylene oxide segment. Preferably the system also contains a small amount of an alcohol such as methanol or ethanol.