TITLE

Nonequilibrium hollow-fiber liquid-phase microextraction with in situ derivatization for the measurement of triclosan in aqueous samples by gas chromatography—mass spectrometry

AUTHOR(S)
Ru-Song Zhao; Jin-Peng Yuan; Hai-Fang Li; Xu Wang; Ting Jiang; Jin-Ming Lin
PUB. DATE
April 2007
SOURCE
Analytical & Bioanalytical Chemistry;Apr2007, Vol. 387 Issue 8, p2911
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Hollow-fiber liquid-phase microextraction (HF-LPME), a relatively new sample preparation technique, has attracted much interest in the field of environmental analysis. In the current study, a novel method based on hollow-fiber liquid-phase microextraction with in situ derivatization and gas chromatography–mass spectrometry for the measurement of triclosan in aqueous samples is described. Hollow-fiber liquid-phase microextraction conditions such as the type of extraction solvent, the stirring rate, the volume of derivatizing reagent, and the extraction time were investigated. When the conditions had been optimized, the linear range was found to be 0.05–100 μg l−1 for triclosan, and the limit of detection to be 0.02 μg l−1. Tap water and surface water samples collected from our laboratory and Wohushan reservoir, respectively, were successfully analyzed using the proposed method. The recoveries from the spiked water samples were 83.6 and 114.1%, respectively; and the relative standard deviation (RSD) at the 1.0 μg l−1 level was 6.9%.
ACCESSION #
24441182

 

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