Gas Chromatographic Determination of Low Concentrations of Hydrocarbons in Water by Vapor Phase Extraction

D Mackay; WY Shiu; AW Wolkoff

doi:10.1520/STP39015S

SYMPOSIA PAPER Published: 01 January 1975

STP39015S

Gas Chromatographic Determination of Low Concentrations of Hydrocarbons in Water by Vapor Phase Extraction

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A novel system for the measurement of low concentrations of hydrocarbons in water is described. The apparatus introduces a vapor sample of the hydrocarbon to a gas chromatograph following transfer of part of the hydrocarbon from the aqueous solution to a vapor phase. The thermodynamic basis for predicting the vapor-liquid equilibration is given. The method is capable of analyzing hydrocarbon concentrations in parts per billion range; however, the sensitivity depends on the hydrocarbon solubility and vapor pressure.

Author Information

Mackay, D

Institute of Environmental Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada

Shiu, WY

Institute of Environmental Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada

Wolkoff, AW

Canada Centre for Inland Waters, Burlington, Ontario, Canada

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Details

Developed by Committee: D19

Pages: 251–258

DOI: 10.1520/STP39015S

ISBN-EB: 978-0-8031-5584-8

ISBN-13: 978-0-8031-5526-8

Gas Chromatographic Determination of Low Concentrations of Hydrocarbons in Water by Vapor Phase Extraction

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