期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1015, 期 1-2, 页码 23-30出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(03)01215-9
关键词
environmental analysis; water analysis; polypyrrole; pesticides; phenols; polynuclear aromatic hydrocarbons
A pyrrole-based polymer was synthesized and applied as a new sorbent for solid-phase extraction (SPE) of some environmental pollutants from water samples. Polypyrrole (PPy) was synthesized by chemical oxidation of the monomer in nonaqueous solution. SPE of selected phenols, pesticides, and polyaromatic hydrocarbons (PAHs) from aqueous samples were performed using 200 mg PPy. The determination was subsequently carried out by gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The polymer showed much higher recoveries for aromatic compounds than aliphatics. Preconcentration of sample volumes up 11 led to acceptable recoveries for aromatic and other tested polar compounds. The R.S.D. for a river water sample spiked with phenols, pesticides and PAHs at sub-ppb level was lower than 10% (n = 3) and limits of detection for these compounds were between 15 and 120 ngl(-1). (C) 2003 Elsevier B.V. All rights reserved.
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