Evaluation of Pb-Spec® for flow-injection solid-phase extraction preconcentration for the determination of trace lead in water and wine by flame atomic absorption spectrometry

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dc.authoridBakircioglu Kurtulus, Yasemin/0000-0003-3013-5793;
dc.authorwosidBakircioglu Kurtulus, Yasemin/Q-2570-2017
dc.authorwosidTyson, Julian F/M-2051-2018
dc.authorwosidRío Segade, Susana/H-5496-2012
dc.contributor.authorBakircioglu, Y
dc.contributor.authorSegade, SR
dc.contributor.authorYourd, ER
dc.contributor.authorTyson, JF
dc.date.accessioned2024-06-12T11:02:02Z
dc.date.available2024-06-12T11:02:02Z
dc.date.issued2003
dc.departmentTrakya Üniversitesien_US
dc.description.abstractTwo manifold designs were evaluated. Water samples and wine digests in 10% nitric acid were pumped through a column containing a commercially available resin (Pb-Spec(R)), an immobilized crown ether with a cavity size selective for Pb2+. The column was rinsed with 2% HNO3 and the eluent, 0.1 mol l(-1) ammonium oxalate was injected via a six-port rotary valve. The eluted lead was delivered to the flame atomic absorption spectrometer at 4.0 ml min(-1). The following flow-injection (FI) parameters were optimized: sample acidity and volume, loading and elution flow rates, and eluent composition and volume. The detection limit for the water samples, estimated from the noise on the signal obtained for 250 ml of 10 mug l(-1) loaded at 19.1 ml min(-1) was 1 mug l(-1). For 50 ml of wine digest loaded at 4 ml min(-1), the value was 3 mug l(-1). The roles of loading flow rate and sample volume were investigated in detail. The variation in retention efficiency with loading flow rate showed that the amount of lead retained (during a fixed loading time) increased with flow rate until the upper performance limit of the peristaltic pump was reached. The variation of detection limit with sample volume followed the expected hyperbolic relationship and showed that only small improvements in LOD were obtained for volumes greater than 50 ml. The method was evaluated through spike recovery for both water and wine. The lead contents of tap (0.24 mug l(-1)), pond (0.40 mug l(-1)), and river waters (not detected) were determined. The concentrations of lead in three Port wine samples ranged from not detected to 190 mug l(-1). No significant matrix suppression effects were observed. (C) 2003 Elsevier Science B.V. All rights reserved.en_US
dc.identifier.doi10.1016/S0003-2670(03)00348-9
dc.identifier.endpage18en_US
dc.identifier.issn0003-2670
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-0038663124en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage9en_US
dc.identifier.urihttps://doi.org/10.1016/S0003-2670(03)00348-9
dc.identifier.urihttps://hdl.handle.net/20.500.14551/21120
dc.identifier.volume485en_US
dc.identifier.wosWOS:000183171900002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofAnalytica Chimica Actaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFlow-Injectionen_US
dc.subjectSolid-Phase Extractionen_US
dc.subjectLeaden_US
dc.subjectPreconcentrationen_US
dc.subjectAtomic Absorption Spectroscopyen_US
dc.subjectPlasma-Mass Spectrometryen_US
dc.subjectOnline Preconcentrationen_US
dc.subjectPort-Wineen_US
dc.subjectSorbent Extractionen_US
dc.subjectIsotope Ratiosen_US
dc.subjectUv-Irradiationen_US
dc.subjectSamplesen_US
dc.subjectSystemen_US
dc.subjectPretreatmenten_US
dc.subjectSpeciationen_US
dc.titleEvaluation of Pb-Spec® for flow-injection solid-phase extraction preconcentration for the determination of trace lead in water and wine by flame atomic absorption spectrometryen_US
dc.typeArticleen_US

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