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:
Aug. 23, 2011
Filed:
Jul. 31, 2009
Anoop Agrawal, Tucson, AZ (US);
John P. Cronin, Tucson, AZ (US);
Lori L. Adams, Tucson, AZ (US);
Akshay Agrawal, Tucson, AZ (US);
Juan Carlos L. Tonazzi, Tucson, AZ (US);
Anoop Agrawal, Tucson, AZ (US);
John P. Cronin, Tucson, AZ (US);
Lori L. Adams, Tucson, AZ (US);
Akshay Agrawal, Tucson, AZ (US);
Juan Carlos L. Tonazzi, Tucson, AZ (US);
Ajjer LLC, Tucson, AZ (US);
Abstract
An improved optical method for determining metal or a metal compound thereof in a sample with organic impurities. The optical method comprises of solvating the metal in a liquid medium and then mixing this liquid medium with an optical indicator and then measuring the presence of the metal. The improvement lies in removing any organic impurities by the addition of an additive, where the said additive is removed before the optical indicator is added.