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. 04, 1983
Filed:
Dec. 11, 1980
Applicant:
Inventors:
Alessandro Tabacco, Siena, IT;
Paolo Tarli, Monteriggioni, IT;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 74 ; 436 84 ; 422 61 ;
Abstract
An improved colorimetric reagent is disclosed, which is adapted to the determination of the iron content in blood serum. The formulation comprises only two aqueous solutions: one of these comprises a buffer, a soluble salt of an alkali metal or an alkaline earth metal, Chromazurol B, a cationic or nonionic surfactant, whereas the other solution comprises a complexing agent and possibly the same ingredients of the chromogenic reagent for hindering the formation of the disturbing complex between chromazurol B, the surfactant and the iron: the complexing agent is a polycarboxylic acid or a salt thereof.