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. 28, 2010
Filed:
May. 02, 2007
Huarui He, Alpharetta, GA (US);
Chao Lin, Alpharetta, GA (US);
Neeta Raje, Alpharetta, GA (US);
Chusheng Liu, Atlanta, GA (US);
Huarui He, Alpharetta, GA (US);
Chao Lin, Alpharetta, GA (US);
Neeta Raje, Alpharetta, GA (US);
Chusheng Liu, Atlanta, GA (US);
Opti Medical Systems, Westbrook, ME (US);
Abstract
The invention relates to methods of determining sodium ions in a sample, wherein the ions are contacted with a compound having chromophoric moiety and an ionophoric moiety, where the ionophoric moiety interacts with the sodium ions present in the sample, resulting in the chromophoric moiety changing its radiation absorption properties in the ultraviolet and visible regions of the spectrum. For example, a change in an intensity of an absorption maximum is measured and the ion concentration is determined accordingly.