Title: Trace Analysis of Phenols and Chlorophenols in Water by in Situ Derivatization Headspace Solid-Phase Microextraction Coupled with Gas Chromatography/Mass Spectrometry
Abstract: An in situ derivatization headspace solid phase microextraction method has been developed for the determination of phenols and related chlorophenols in water.Acetylated derivatives were selectively determined using gas chromatography/mass spectrometry(GC /MS).Parameters affecting both derivatization and SPME procedures,such as fiber coating,extraction time,temperature,volume of derivatizating reagent and ionic strength,were studied.Then the polydimethylsiloxane/divinylbenzene fiber(PDMS/DVB,65 μm) was selected.The performance of the method was evaluated in terms of accuracy,linearity,precision and limits of detection.Under the selected conditions,i.e.4.0 g NaCl,0.10 g Na2HPO4 in every 10 mL sample solution,headspace extraction at 60℃ and 600 r/min for 30 min,quantitative recoveries and satisfactory precision(RSD≤13.7%) were obtained.Limits of detection for all target compounds ranged from 0.014 to 0.044 μg/L.Linearity was found in a wide range of concentrations.Finally,the applicability of the proposed method is demonstrated by determining phenols in real wastewater samples.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 4
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