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A Study on Purge Efficiency in Purge and Trap Analysis of VOCs in Water
이강진,표희수,박송자,유은아,이대운,Lee, Gang Jin,Pyo, Hui Su,Park, Song Ja,Yu, Eun A,Lee, Dae Un Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.2
A Purge and Trap Concentrator has been used to analyze various volatile organic compounds in water, operating several parameters affecting the extraction efficiencies of these compounds. The object of the present study was to observe the purge efficiencies of 40 volatile organic compounds (VOCs) in water, according to the change of parameters (purge time, dry purge time, sample temperature), and to determine the optimum condition of analysis of VOCs. The Purge and Trap Concentrator was interfaced with a narrow capillary connected to a gas chromatography mass spectrometer. At this condition, the detection limits of VOCs were in the range of 0.1-0.5 ㎍/L.