Measuring and testing – Gas analysis – Gas chromatography
Reexamination Certificate
2011-04-26
2011-04-26
Larkin, Daniel S (Department: 2856)
Measuring and testing
Gas analysis
Gas chromatography
Reexamination Certificate
active
07930924
ABSTRACT:
A system and method of measuring volatile and semi-volatile reduced organic compound content and volatile and semi-volatile oxidized organic compound content in a sample, using a dual detection system is provided. The method comprises introducing the sample into a semi-permeable membrane introduction interface, sweeping permeate from the membrane introduction interface with a sweep gas, splitting the permeate into a first stream and a second stream, essentially simultaneously detecting volatile and semi-volatile reduced organic compounds and oxidized and semi-volatile organic compounds with a flame ionization detector and an electron capture detector, and computing differences in detector signals, thereby measuring volatile and semi-volatile reduced organic content and volatile and semi-volatile oxidized organic compound content in the sample.
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Gill Christopher G.
Krogh Erik Thomas
Klarquist & Sparkman, LLP
Larkin Daniel S
Vancouver Island University
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