A deep eutectic solvent based liquid phase microextraction for the determination of caffeine in Turkish coffee samples by HPLC-UV

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dc.contributor.authorSivrikaya, Sezen
dc.date.accessioned2021-12-01T18:47:06Z
dc.date.available2021-12-01T18:47:06Z
dc.date.issued2020
dc.department[Belirlenecek]en_US
dc.description.abstractA novel liquid-phase microextraction procedure for the determination and extraction of caffeine using a deep eutectic solvent based liquid-phase microextraction method (DES-LPME) was developed. A deep eutectic solvent consisting of choline chloride-phenol (1:3) and tetrahydrofuran as a dilution solvent were used for the extraction of caffeine from Turkish coffee samples. The quantitative recoveries were obtained when the DES volume was 400 mu L, and the volume of tetrahydrofuran that was used as an emulsifier solvent was 800 mu L. The limit of detection and the limit of quantification were found to be 0.12 and 0.40 mu g mL(-1), respectively. Linear dynamic range was 0.5-100 mu g mL(-1), and coefficient of determination (R-2) was 0.9998. The relative standard deviation (RSD) was 2.20% when the standard solution concentration was 1.0 mu g mL(-1). The fact that the determination coefficient obtained from the calibration curve was greater than 0.9998 gives information about the accuracy of the method. Also, in order to determine the accuracy of the developed method, selected coffee samples were spiked with 25 and 50 mu g mL(-1) caffeine.en_US
dc.description.sponsorshipDuzce University Research Project FoundationDuzce University [2018.07.06.803]en_US
dc.description.sponsorshipThis work was supported by a grant from Duzce University Research Project Foundation (Project no: 2018.07.06.803).en_US
dc.identifier.doi10.1080/19440049.2020.1711972
dc.identifier.endpage495en_US
dc.identifier.issn1944-0049
dc.identifier.issn1944-0057
dc.identifier.issue3en_US
dc.identifier.pmid31917645en_US
dc.identifier.scopus2-s2.0-85078623634en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage488en_US
dc.identifier.urihttps://doi.org/10.1080/19440049.2020.1711972
dc.identifier.urihttps://hdl.handle.net/20.500.12684/10140
dc.identifier.volume37en_US
dc.identifier.wosWOS:000506482400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSivrikaya, Sezen
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofFood Additives And Contaminants Part A-Chemistry Analysis Control Exposure & Risk Assessmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCaffeineen_US
dc.subjectliquid phase microextractionen_US
dc.subjectdeep eutectic solventsen_US
dc.subjectcoffeeen_US
dc.subjectFooden_US
dc.subjectWateren_US
dc.subjectChromatographyen_US
dc.subjectExtractionen_US
dc.subjectTeaen_US
dc.titleA deep eutectic solvent based liquid phase microextraction for the determination of caffeine in Turkish coffee samples by HPLC-UVen_US
dc.typeArticleen_US

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