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dc.creatorŠovrc, Ľubomír
dc.creatorCinková, Kristína
dc.creatorSamphao, Anchalee
dc.creatorStanković, Dalibor
dc.creatorMehmeti, Eda
dc.creatorKalcher, Kurt
dc.date.accessioned2018-11-22T00:31:20Z
dc.date.available2018-11-22T00:31:20Z
dc.date.issued2015
dc.identifier.issn1572-6657
dc.identifier.urihttp://cherry.chem.bg.ac.rs/handle/123456789/1702
dc.description.abstractA novel analytical approach for the sensitive determination of a beta-carboline alkaloid, harmaline, was developed using pulse voltammetric techniques with a boron-doped diamond electrode. Cyclic voltammetry showed two irreversible oxidation peaks at about +0.90 and +1.20 V (vs. Ag/AgCl) in Britton-Robinson buffer solution at pH 5. Under optimized experimental conditions, differential pulse and square-wave voltammetry were elaborated for the determination of harmaline in a linear concentration range from 0.2 to 100.7 and from 0.4 to 104.5 mu mol L-1, respectively, with detection limits of 0.08 and 0.2 mu mol L-1, respectively. The practical feasibility of the developed method was demonstrated by quantification of harmaline in the extracts of natural food products such as Syrian rue (Peganum harmala, also known as esphant, harmal, yiizerlik) seeds, locally used as condiment and medicine in Turkey and the Near and Middle East, and the South American shamanic drink component Ayahuasca liane (Banisteriopsis caapi) with results in good agreement with those obtained by high-performance liquid chromatography as a reference method. The proposed sensor represents an effective electrochemical tool and inexpensive alternative for quality control analysis of food products containing harmaline. (C) 2015 Elsevier B.V. All rights reserved.en
dc.publisherElsevier Science Sa, Lausanne
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172030/RS//
dc.relationBilateral program Action: Austria-Slovakia
dc.relationSlovak Research and Development Agency [APVV-0797-11]
dc.relationGrant Agency of the Slovak Republic [1/0051/13, 1/0361/14]
dc.rightsrestrictedAccess
dc.sourceJournal of Electroanalytical Chemistry
dc.subjectHarmalineen
dc.subjectBoron-doped diamond electrodeen
dc.subjectVoltammetryen
dc.subjectDetection limiten
dc.subjectPeganum herniateen
dc.subjectBanisteriopsis caapien
dc.titleVoltammetric determination of harmaline in natural food products using boron-doped diamond electrodeen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСворц, Л'убомир; Цинкова, Кристина; Станковић, Далибор; Мехмети, Еда; Калцхер, Курт; Сампхао, Aнцхалее;
dc.citation.volume744
dc.citation.spage37
dc.citation.epage44
dc.identifier.wos000353850100006
dc.identifier.doi10.1016/j.jelechem.2015.03.004
dc.citation.other744: 37-44
dc.citation.rankM21
dc.type.versionpublishedVersionen
dc.identifier.scopus2-s2.0-84924778039
dc.identifier.rcubKon_2848


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