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. 03, 2002
Filed:
Apr. 19, 1999
Ross C. Thomas, Superior, CO (US);
Eric D. Cravens, Broomfield, CO (US);
Michael T. Carter, Denver, CO (US);
Eltron Research, Inc., Boulder, CO (US);
Abstract
This invention provides devices for the measurement of total organic carbon content in water samples. The device has a microfluidic sample cell with a sample channel for receiving a water sample wherein the water sample can be irradiated with UV radiation to oxidize organics to CO . The sample channel is sufficiently thin in the region irradiated to allow very rapid substantial mineralization of the organics in the sample. A photocatalyst, such as TiO or platinized TiO can be employed to speed sample oxidation. Substantial mineralization of a sample can be achieved in less than about 30 seconds, significantly decreasing the time required for making a TOC measurement. CO generated by sample oxidation can be detected and/or quantitated by various methods, particularly by conductivity measurements or by infrared methods.