Preparation and Characterization of a Novel Solid-Phase Microextraction Material for Application to the Determination of Pesticides

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dc.contributor.authorDizdas, Tugberk Nail
dc.contributor.authorPelit, Fusun Okcu
dc.contributor.authorKorba, Korcan
dc.contributor.authorPelit, Levent
dc.contributor.authorKanik, Fulya Ekiz
dc.contributor.authorToppare, Levent
dc.contributor.authorErtas, Hasan
dc.contributor.authorErtas, F. Nil
dc.date.accessioned2019-10-27T23:09:54Z
dc.date.available2019-10-27T23:09:54Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description9th Aegean Analytical Chemistry Days (AACD) -- SEP 29-OCT 03, 2014 -- Chios, GREECEen_US
dc.description.abstractThe preparation and characterization of a novel solid-phase microextraction fiber is reported with application to the determination of pesticides in fruit juice. The fiber was fabricated by electrochemically coating a stainless steel wire with a thin polymeric film of 4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl) benzenamine. The procedure was initiated in 10mL of acetonitrile containing 5.5mg of monomer, 0.1mol NaClO4, and 0.1mol LiClO4 by cycling the potential between -0.5 and 1.2V with a scan rate of 100mV/sec. The morphology of the fiber surface was examined by scanning electron microscopy and its stability was characterized by thermal gravimetric analysis. The fiber was exposed to headspace extraction of bromopropylate, chlorpyrifos, lambda-cyhalothrin, penconazole, and procymidone prior to the analysis by gas chromatography with an electron capture detector. Operational parameters affecting the extraction efficiency, adsorption and desorption times and temperature, and stirring rate were screened using a Plackett-Burman Design. Emerging parameters were further optimized via Central Composite Design that were 20min at 64 degrees C for adsorption and 4.4min at 250 degrees C for desorption. Solution parameters were optimized to be 5.0mL of sample in pH 2.0 Britton-Robinson buffer containing 0.1mg/L NaCl to promote the volatilization of the analytes. The limits of detection were at the ng/mL level for the pesticides. The fiber was used as a selective and sensitive tool for the trace determination of these pesticides in grape juice.en_US
dc.identifier.doi10.1080/00032719.2015.1033720
dc.identifier.endpage916en_US
dc.identifier.issn0003-2719
dc.identifier.issn1532-236X
dc.identifier.issn0003-2719en_US
dc.identifier.issn1532-236Xen_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage907en_US
dc.identifier.urihttps://doi.org/10.1080/00032719.2015.1033720
dc.identifier.urihttps://hdl.handle.net/11454/52774
dc.identifier.volume49en_US
dc.identifier.wosWOS:000373911300004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofAnalytical Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectgas chromatographyen_US
dc.subjectElectron capture detectoren_US
dc.subjectgrape juiceen_US
dc.subjectpesticide analysisen_US
dc.subjectelectropolymerizationen_US
dc.subjectsolid-phase microextractionen_US
dc.titlePreparation and Characterization of a Novel Solid-Phase Microextraction Material for Application to the Determination of Pesticidesen_US
dc.typeArticleen_US

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