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. 15, 1998
Filed:
May. 29, 1997
Applicant:
Inventors:
Cy H Pollema, Loveland, CO (US);
Daniel L Campbell, Ft. Collins, CO (US);
Leon E Moore, Windsor, CO (US);
Assignee:
Hach Company, Loveland, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 52 ; 436 43 ; 436174 ; 436180 ; 422 681 ; 422 81 ; 422 52 ;
Abstract
A carrierless method is described for the analysis of a fluid sample for determination of the presence of a chemical species in the sample or for the determination of a physical characteristic of the sample. A portion of sample is drawn into a holding coil, followed by drawing one or more reagents (if desired) into the holding coil, then moving the sample and reagent (or reagents) through the reaction coil to a detector (e.g., calorimeter, potentiometer, ion selective electrode, fluorimetric detector, photometric detector, etc.). No separate carrier fluid is used in this method.