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. 02, 2011
Filed:
Dec. 08, 2009
Eugene Tokhtuev, Duluth, MN (US);
Christopher J. Owen, Duluth, MN (US);
Viktor Slobodyan, Duluth, MN (US);
Anatoly Skirda, Duluth, MN (US);
Paul Schilling, Duluth, MN (US);
Anna Pilipchenko, Duluth, MN (US);
Paul R. Kraus, Apple Valley, MN (US);
Katherine M. Sanville, White Bear Lake, MN (US);
Joseph Phillip Erickson, Cloquet, MN (US);
Eugene Tokhtuev, Duluth, MN (US);
Christopher J. Owen, Duluth, MN (US);
Viktor Slobodyan, Duluth, MN (US);
Anatoly Skirda, Duluth, MN (US);
Paul Schilling, Duluth, MN (US);
Anna Pilipchenko, Duluth, MN (US);
Paul R. Kraus, Apple Valley, MN (US);
Katherine M. Sanville, White Bear Lake, MN (US);
Joseph Phillip Erickson, Cloquet, MN (US);
Ecolab Inc., St. Paul, MN (US);
Abstract
An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.