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:
Oct. 27, 1987
Filed:
Sep. 05, 1986
Applicant:
Inventors:
Assignee:
Sclavo, S.p.A., Siena, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 74 ; 436 84 ; 422 61 ;
Abstract
A colorimetric reagent formulation is disclosed for the determination of the ferric iron content of serum. The formulation consists of two aqueous solutions. One solution, acting as chromogenic reagent, consists of a buffer, a soluble salt of an alkali or alkaline earth metal, chromazurol S in acidic form, and either a cationic or nonionic surfactant. The other solution, acting as masking reagent, consists of a complexing agent and if desired the same components of the chromogenic reagent, which are able to prevent the formation of the complex between the chromazurol S, the surfactant and the iron. The complexing agent consists of a polycarboxylic organic acid or salt thereof.