Optimization of hollow fiber liquid-phase microextraction combined with GC-ECD for determination of organochlorine pesticides in orange juice

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dc.contributor.authorDemirci A.
dc.contributor.authorGevrek E.
dc.date.accessioned2020-06-25T15:17:26Z
dc.date.available2020-06-25T15:17:26Z
dc.date.issued2014
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe hollow fiber protected liquid phase microextraction (HF-LPME) technique was evaluated for the extraction of organochlorine pesticides in orange juice prior to gas chromatography-electron capture detection (GC-ECD) analysis. At first, the effects of the HF-LPME experimental parameters on the enrichment factor were studied simultaneously using a 25-1 fractional factorial design. The HF-LPME variables of interest were extraction time, stirring speed, acceptor phase, salt (NaCl, w/v %) and pH. In the next step, a two-level plus centre point fractional factorial experiment was performed to evaluate the effects of three parameters, including the extraction time, stirring speed and pH of donor phase. The optimized HF-LPME conditions were as follows: an extraction time of 20 min, a stirring speed of 800 rpm, an acceptor phase of toluene, no salt and a source pH of 6. The extraction calibration plots were linear over the range of 0.25-10 ng mL-1 (r2: 0.9863-0.9995) and the limits of detection for ten pesticides studied were from 0.012 to 0.456 ng mL-1. Good enrichment factors were achieved (66-251-fold) with this method and good repeatabilities were obtained, with relative standard deviations below 19.9 %. © 2014, Chemical Publishing Co. All rights reserved.en_US
dc.identifier.doi10.14233/ajchem.2014.17910
dc.identifier.endpage8201en_US
dc.identifier.issn09707077
dc.identifier.issue23en_US
dc.identifier.scopus2-s2.0-84919807985
dc.identifier.scopusqualityQ4
dc.identifier.startpage8197en_US
dc.identifier.urihttps://doi.org/10.14233/ajchem.2014.17910
dc.identifier.urihttps://hdl.handle.net/20.500.12587/2369
dc.identifier.volume26en_US
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherChemical Publishing Co.en_US
dc.relation.ispartofAsian Journal of Chemistry
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectChlorinated pesticidesen_US
dc.subjectExperimental designen_US
dc.subjectGC-ECDen_US
dc.subjectHollow fiber microextractionen_US
dc.subjectJuiceen_US
dc.titleOptimization of hollow fiber liquid-phase microextraction combined with GC-ECD for determination of organochlorine pesticides in orange juiceen_US
dc.typeArticle

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