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dc.creatorSueldo Occello, Valeria Noemi-
dc.creatorVeglia, Alicia Viviana-
dc.date2018-12-20T18:42:53Z-
dc.date2018-12-20T18:42:53Z-
dc.date2011-01-19-
dc.date2018-11-22T15:28:00Z-
dc.date.accessioned2019-04-29T15:30:58Z-
dc.date.available2019-04-29T15:30:58Z-
dc.date.issued2011-01-19-
dc.identifierSueldo Occello, Valeria Noemi; Veglia, Alicia Viviana; Cucurbit[6]uril nanocavity as an enhanced spectrofluorimetric method for the determination of pyrene; Elsevier Science; Analytica Chimica Acta; 689; 1; 19-1-2011; 97-102-
dc.identifier0003-2670-
dc.identifierhttp://hdl.handle.net/11336/66867-
dc.identifier1873-4324-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/295543-
dc.descriptionThe effect of the addition of macrocyclic host cucurbit[6]uril (CB6) on the photophysical properties of polycyclic aromatic hydrocarbon pyrene (PYR) was analyzed. The fluorescence emission spectra of the aromatic compound were determined at 25.0°C in different acidic media (HCl 18%, w/v, or HCOOH 55%, w/v) with and without CB6. A significant enhancement in the fluorescence signals in the presence of CB6 was observed. The average values of the association constant (KA) for the 1:1 stoichiometry complex and the relative fluorescence quantum yield ratio between the complexed and free PYR (φPYR-CB6/φPYR) in acidic media were (4.0±0.5)×102M-1 and (5.7±0.2), respectively.The analytical parameters improved in the presence of CB6. The relative decrease in the limit of detection was 92%. The matrix effect was evaluated in fortified samples of tap water and tea extracts. Apparent recoveries obtained by the proposed method in tap water and tea extracts were (82-103)% and (89-99)%, respectively. Selectivity studies with inorganic and organic species were performed. The method is rapid, direct, selective and simple. © 2011 Elsevier B.V.-
dc.descriptionFil: Sueldo Occello, Valeria Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina-
dc.descriptionFil: Veglia, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherElsevier Science-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.aca.2011.01.027-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0003267011000894-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectCUCURBITURIL-
dc.subjectFLUORESCENCE-
dc.subjectNANOSENSOR-
dc.subjectPOLYCYCLIC AROMATIC HYDROCARBONS-
dc.subjectPYRENE-
dc.subjectSUPRAMOLECULAR-
dc.subjectOtras Ciencias Químicas-
dc.subjectCiencias Químicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleCucurbit[6]uril nanocavity as an enhanced spectrofluorimetric method for the determination of pyrene-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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