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Serving leading biopharmaceutical companies globally:

US Army
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Generated: October 23, 2017

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Details for Patent: 5,242,471

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Summary for Patent: 5,242,471

Title: Coupling capillary gas chromatography to traditional liquid chromatography detectors
Abstract:Apparatus and methods are provided for using a detector designed for use with liquids to detect resolved analytes in an effluent stream from a gas chromatography instrument. The gaseous stream is entrained by a flowing liquid solvent, and at least a portion of the analytes are transferred from the gas phase to the liquid phase. The liquid solvent containing the analytes is then conveyed to a detector designed for liquid analysis. Thus, the present invention gives the analyst more options for detecting an analyte or a group of analytes, thereby providing greater flexibility in optimizing the sensitivity or selectivity of the analysis. Furthermore, the present invention allows gaseous effluents to be analyzed by detectors which more readily permit sample recovery than the detectors currently being used to analyze gaseous effluents.
Inventor(s): Markham; Dan A. (Rhodes, MI), Langvardt; Patrick W. (Midland, MI)
Assignee: The Dow Chemical Company (Midland, MI)
Application Number:07/887,996
Patent Claim Types:
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Use; Formulation; Device; Delivery;

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