R.j. Reynolds Tobacco Company

Bert Miller Gordon

William Monroe Coleman, Iii

Luis Mayan Dominguez

Forrest W Bowling

Linda Ann Crumpler

William Monroe Iii Coleman

A method of and apparatus for automatically monitoring and reporting the exact concentrations of specific chemicals contained in one or more air streams is disclosed in which the system automatically calibrates one or a plurality of gas chromatographs using a plurality of calibration gases and then alternatingly samples and analyzes air streams containing volatile or semi-volatile organic or inorganic compounds. When a plurality of gas chromatographs are utilized, the system of the present invention is capable of simultaneously analyzing one or more air streams for a plurality of compounds. Apparatus for ensuring sample line and measurement system integrity is also disclosed. The results of the analysis are recorded and are stored in computer files which include the exact chemical concentrations of a sample taken from an air stream.

Method and apparatus for continuous emissions monitoring system using

A method for monitoring the concentration of at least one volatile or semi-volatile compound contained in at least one air stream carrying at least one volatile or semi-volatile compound and apparatus for performing the method, which includes the steps of calibrating at least one gas chromatograph using at least three different calibration gases, obtaining a sample of the at least one air stream containing the at least one compound, providing the sample of the at least one air stream to the at least one gas chromatograph under control of a digital data processor to analyze the sample of the at least one air stream to determine the concentration of the at least one compound in the sample and controlling the operations using the digital data processor.

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Winston-Salem, NC, United States of America

Bert Miller Gordon