Method and apparatus for determination of volatile electrolytes
Patent 4209299 Issued on June 24, 1980. Estimated Expiration Date: 
February 21, 1998. 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.
February 21, 1998. 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 2999673 3495943 3572994 Analysis apparatus and method of measuring rate of change of electrolyte pH Method and apparatus for monitoring low concentrations of ions in a flowing fluid Method of adjusting pH Patent #: 4131428 InventorAssigneeApplicationNo. 05/879156 filed on 02/21/1978US Classes:436/150, Of a liquid205/793, Using semipermeable membrane422/76, Conductiometric type422/81, Automated system with sample fluid pressure transport means422/82.02, Resistance or conductivity422/98, Analysis based on electrical measurement436/110, Nitrite or nitrate436/114, Total nitrogen determined436/119, SULFUR CONTAINING436/129, Carboxylic acid436/133, Inorganic carbon compounds436/20FOOD OR DAIRY PRODUCTSExaminersPrimary: Marcus, Michael S.Attorney, Agent or FirmInternational ClassG01N 27/02 (20060101)AbstractQuantitative determination of a particular type of volatile material in a liquid is determined by first transferring the desired volatile, suppressing other volatiles if necessary, to a liquid of known conductivity, such as deionized, degassed water. Transfer is through a gas-permeable, liquid-impermeable membrane. Then the electrical conductivity of the water to which the volatile material has been transferred is determined. Continuous stream processing is feasible. An instrumental assembly suitable for this determination is provided.Other References
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