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HERO ID
2803165
Reference Type
Journal Article
Title
Multiplex gas chromatography with a hollow fiber membrane interface for determination of trace volatile organic compounds in aqueous samples
Author(s)
Yang, MJ; Pawliszyn, J
Year
1993
Is Peer Reviewed?
Yes
Journal
Analytical Chemistry
ISSN:
0003-2700
EISSN:
1520-6882
Report Number
BIOSIS/93/28545
Volume
65
Issue
13
Page Numbers
1758-1763
Language
English
Web of Science Id
WOS:A1993LJ38000022
Abstract
BIOSIS COPYRIGHT: BIOL ABS. A multiplex gas chromatographic technique was applied in conjunction with a hollow fiber membrane module to allow rapid routine analysis and long-term continuous monitoring of trace amounts of volatile organic compounds (VOCs) in aqueous samples. This solvent-free method of analysis substantially reduces the sample preparation time by eliminating the preconcentration step. Loss of VOCs was also minimized during the analytical process. The sensitivity of the analysis was greatly enhanced due to multiplex and throughput advantages. The hollow fiber extraction can be performed using two flow rate regimens. At low flow rates, quantitative extraction is ensured, hence the effects of temperature and matrix on recoveries are eliminated. For high flow rates, the sensitivity of the method is dramatically increased because of the increase in extraction rates. At the optimum flow rate, a detection limit of 4 mug, with a precision of and lt; 5% in relative standard deviation, was achi
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OPPT_Trichloroethylene (TCE)_C. Engineering
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OPPT_Trichloroethylene (TCE)_D. Exposure
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OPPT_Trichloroethylene (TCE)_E. Fate
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