Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1087, Issue 1-2, Pages 283-288Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2005.06.009
Keywords
solid-phase extraction; water analysis; beta-cyclodextrin; phenolic compounds
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A new absorbent for solid-phase extraction (SPE) was prepared by a beta-cyclodextrin bonded silica stationary phase (CDS) has been applied to determine the concentrations of phenol compounds in water samples. SPE of selected phenolic compounds from aqueous samples were performed using 250 mg CDS. The determination was subsequently carried out by gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Compared with available SPE, the CDS showed high sensitivity and fast velocity of mass transfer for phenolic compound because of its porous structure of beta-cyclodextrin. The relative standard deviation (RSD) for river water sample spiked with phenolic compounds at sub-ppb level was lower than 10% and limit of detection (LOD) for these compounds were between 10 and 100 ng l(-1). (c) 2005 Elsevier B.V. All rights reserved.
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