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:
Sep. 26, 2023
Filed:
Nov. 21, 2020
Applicant:
United States Geological Survey, Reston, VA (US);
Inventors:
Brian Anthony Pellerin, Herndon, VA (US);
Angela Merleen Hansen, Sacramento, CA (US);
Assignee:
U.S. Geological Survey, Reston, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); G01N 21/93 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 21/93 (2013.01); G01N 33/18 (2013.01); G01N 2201/12715 (2013.01); G01N 2201/12746 (2013.01); G01N 2201/13 (2013.01);
Abstract
A multiparameter standard solution for verifying and calibrating water quality sensors containing an aqueous pH buffer, a xanthene dye, and distyryl biphenyl (DSBP) is provided. The standard solution provides a safe, quick, easy, and stable field standard to simultaneously conduct calibration analysis for several sensors at once. The standard solution is stable when stored and can be safely disposed of in the field. Methods of calibrating sensors used in water quality analysis using the multiparameter standard solution are also provided.