Ultrasound-Assisted Emulsification-Microextraction With In Situ Derivatization and Gas Chromatography-Electron-Capture Detection for Determination of Chlorophenols in Water

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dc.contributor.authorAydin, Senar
dc.contributor.authorTor, Ali
dc.contributor.authorAydin, Mehmet Emin
dc.contributor.authorBeduk, Fatma
dc.date.accessioned2024-02-23T12:06:42Z
dc.date.available2024-02-23T12:06:42Z
dc.date.issued2015
dc.departmentNEÜen_US
dc.description.abstractA new method, ultrasound-assisted emulsification-microextraction (USAEME) with in situ derivatization and gas chromatography-electron-capture (GC-mu-ECD) detection, was developed to determine selected chlorophenols (CPs), including 2-chlorophenol, 2,6-dichlorophenol, 2,4,5-trichlorophenol, 2,3,4,6-tetrachlorophenol, and pentachlorophenol in water and wastewater samples. Initially the suitable solvent was determined and amount of derivatization reagent (acetic anhydride) and K2CO3, other experimental variables involving extraction and derivatization time, volume of extraction solvent and sample ionic strength, were optimized employing a 2(3) factorial experimental design. The developed method employed 100 mu L of chloroform as extraction solvent, extraction with in situ derivatization for 10 min using 100 mu L of acetic anhydride and 100 mu LK2CO3 (5%, w/v) for 5 mL samples at 25 degrees C with no ionic strength adjustment and centrifugation for 5 min at 4000 rpm. The average relative recoveries under optimum conditions were >97% with relative standard deviation (RSD) <= 5% for three different spiking levels (5, 20, and 100 mu gL(-1)). The limits of detection for studied CPs were in the range of 0.007-0.011mg mu L-1. The developed USAEME with in situ derivatization method was successfully applied to real water samples such as tap, dam water, and domestic wastewater. The developed method showed comparable efficiency with conventional liquid-liquid extraction-derivatization coupled with GC-mu-ECD. The results demonstrated that the developed USAEME with in situ derivatization is simple, fast and reliable for determination of selected CPs in water samples by GC-mu-ECD.en_US
dc.identifier.doi10.1002/clen.201400513
dc.identifier.endpage1149en_US
dc.identifier.issn1863-0650
dc.identifier.issn1863-0669
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-84939241122en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1143en_US
dc.identifier.urihttps://doi.org/10.1002/clen.201400513
dc.identifier.urihttps://hdl.handle.net/20.500.12452/10551
dc.identifier.volume43en_US
dc.identifier.wosWOS:000359083500004en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofClean-Soil Air Wateren_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectExtraction Timeen_US
dc.subjectFactorial Experimental Designen_US
dc.subjectOrganochloridesen_US
dc.subjectRecoveryen_US
dc.titleUltrasound-Assisted Emulsification-Microextraction With In Situ Derivatization and Gas Chromatography-Electron-Capture Detection for Determination of Chlorophenols in Wateren_US
dc.typeArticleen_US

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