Volume 8, Issue 3 (صفحات انگلیسی از 13 تا 20(چکیده) 2009)
2009, 8(3): 255-264 |
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Simultaneous trace Determination of Benzene, Toluene, Ethyl Benzene and Xylenes (BTEX) in aqueous samples by static Headspace-gas Chromatography-mass Spectrometry (HS-GC-MS). Journal title 2009; 8 (3) :255-264
URL: http://jsci.khu.ac.ir/article-1-1237-en.html
URL: http://jsci.khu.ac.ir/article-1-1237-en.html
Abstract: (5560 Views)
In this study, trace determination of benzene, toluene, ethyl benzene and xylenes isomers (BTEX) in aqueous samples was carried out by static headspace-gas chromatography-mass spectrometry. Important parameters of extraction by headspace such as extraction temperature, extraction time, sample volume and salt concentration were optimized. Under optimal conditions (extraction temperature: 70 oC, salt concentration: 4M, extraction time: 20 min and sample volume: 10 mL) and using selected ion monitoring (SIM) mode of mass spectrometer, detection limits of BTEX were found to be in the range of 1.0-2.2 µg/L .
Published: 2009/02/15
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