Method and apparatus for measuring the amount of carbon and other organics in an aqueous solution
Patent 4277438 Issued on July 7, 1981. Estimated Expiration Date: 
September 4, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 4, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3287088 3535087 3854877 Apparatus for measuring content of organic carbon Multistage reactor Process and apparatus for mixing gases and liquids Process feed and effluent treatment systems Patent #: 4172116 InventorAssigneeApplicationNo. 06/072424 filed on 09/04/1979US Classes:422/80, And means directly analyzing evolved gas250/436, Flow-enclosed radiation source422/186, With means applying electromagnetic wave energy or corpuscular radiation to reactants for initiating or perfecting chemical reaction436/133, Inorganic carbon compounds436/146In an aqueous solution (e.g., TOC, etc.)ExaminersPrimary: Marcus, Michael S.Attorney, Agent or FirmInternational ClassesG01N 31/00 (20060101)G01N 33/18 (20060101) AbstractA method and apparatus for measuring the amount of carbon and other organics in an aqueous solution is disclosed. A novel multistage reactor employs ultraviolet radiation to promote oxidation of a test sample. Oxygen and an oxidizing agent such as sodium persulfate are introduced into the solution prior to irradiation. The mixture is brought into direct contact with an ultraviolet lamp in each stage of the reactor. The design of the multistage reactor permits the desired chemical reaction to be optimized over interferring reactions.An inorganic carbon scrubber assembly is also disclosed for operation in a total organic carbon mode.Other References
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