title: A sensitive solid-phase microextraction/gas chromatography-based procedure for determining pentachlorophenol in food.
abstract: A new method for the determination of pentachlorophenol (PCP) in different foods was developed using capillary gas chromatography (GC) and microwave induced-plasma atomic emission spectrometry (MIP-AED). The analyte is first derivatized and then extracted and pre-concentrated by solid-phase microextraction (SPME) in headspace (HS) mode. A clear matrix effect was found for the different samples investigated, so that standard addition was required for quantification. Detection limits of 0.03-6.0 ng g(-1) were obtained, depending on the sample analysed. The method gave recoveries of 81-109% from spiked samples. Concentration levels of PCP ranged from 0.3 to 1.5 ng g(-1) were found in honey, but no PCP was detected in other samples.
authors.affiliation: Faculty of Chemistry, Department of Analytical Chemistry, University of Murcia, E-30071 Murcia, Spain.
authors.forename: Natalia
authors.initials: N
authors.lastname: Campillo
authors.forename: Rosa
authors.initials: R
authors.lastname: Peñalver
authors.forename: Manuel
authors.initials: M
authors.lastname: Hernández-Córdoba
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D005504:Food Analysis / Q000379:methods; D006722:Honey / Q000032:analysis*; D010416:Pentachlorophenol / Q000032:analysis* / Q000302:isolation & purification; D012015:Reference Standards; D052617:Solid Phase Microextraction / Q000379:methods*
chemical_list: D010416:Pentachlorophenol