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. 30, 1997
Filed:
May. 09, 1995
Applicant:
Inventor:
Eldon L Jeffers, LaPorte, TX (US);
Assignee:
Fellweger Analytics, Inc., League City, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436146 ; 436178 ; 210758 ;
Abstract
A method and apparatus for the measurement of the total organic carbon (TOC) content of a liquid is shown. The inorganic carbon in the liquid is converted into carbon dioxide and removed from it. At the same time, oxygen is added to the liquid. The liquid is then exposed to ultraviolet radiation and the organic carbon thereby oxidized. This oxidized carbon, in the form of carbon dioxide, is allowed to migrate across a gas-permeable, liquid-impermeable membrane directly into a measurement chamber, where its absorption of radiation is measured to determine its concentration.