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:
Apr. 09, 2019
Filed:
Dec. 16, 2015
Ecolab Usa Inc., St. Paul, MN (US);
John Wilhelm Bolduc, Inver Grove Heights, MN (US);
Justin Scott Valenstein, Eagan, MN (US);
Amanda Bakken, Eagan, MN (US);
Stacy Fawbush, St. Paul, MN (US);
Jeffrey Hutchison, St. Paul, MN (US);
Eugene Tokhtuev, Duluth, MN (US);
Anatoly Skirda, Hermantown, MN (US);
Anna Pilipchenko, Duluth, MN (US);
Ecolab USA Inc., Saint Paul, MN (US);
Abstract
A method of detecting concentration of dipicolinic acid and terbium chloride in a chemical composition with a fluorometer, wherein the fluorometer comprises an excitation source for emitting electromagnetic radiation at one or more wavelengths, and a detector module for detecting fluorescence emitted by dipicolinic acid, emitting electromagnetic radiation from the excitation source at wavelengths that induce fluorescence in dipicolinic acid-terbium chloride combination present in the chemical composition, detecting the fluorescence emitted by the dipicolinic acid-terbium chloride combination via the detector module, and determining the concentration of dipicolinic acid using predetermined relationship between fluorescence emitted and the concentration of dipicolinic acid-terbium chloride combination.