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dc.creatorCebolla Burillo, Vicente L.-
dc.creatorMateos Serrano, Elena-
dc.creatorMembrado Giner, Luis-
dc.creatorVela, Jesús-
dc.creatorGálvez Buerba, Eva Mª-
dc.creatorMatt, Muriel-
dc.creatorCossio, Fernando Pedro-
dc.date2008-06-18T10:32:34Z-
dc.date2008-06-18T10:32:34Z-
dc.date2007-02-08-
dc.date.accessioned2017-01-31T01:43:23Z-
dc.date.available2017-01-31T01:43:23Z-
dc.identifierJournal of Chromatography A, 1146 (2007) 251–257-
dc.identifier0021-9673-
dc.identifierhttp://hdl.handle.net/10261/5169-
dc.identifier10.1016/j.chroma.2007.01.138-
dc.identifier.urihttp://dspace.mediu.edu.my:8181/xmlui/handle/10261/5169-
dc.descriptionjournal page: http://www.elsevier.com/wps/find/journaldescription.cws_home/502688/description#description-
dc.descriptionA large number of analytes, including non-fluorescent ones, can be sensitively detected by fluorescence scanning densitometry using silica gel HPTLC plates impregnated with a solution of coralyne cation. This is carried out by the variation, increase or decrease, that the corresponding analyte induces on native coralyne emission at a given excitation wavelength. A similar phenomenon was previously described for berberine cation, and Reichardt's dye probes. However, the sensitivity of coralyne in HPTLC detection of non-fluorescent, structurally different analytes (e.g., long-chain alkanes, alcohols, alkylbromides, neutral lipids) is superior to that of the above-mentioned probes. In this work, the analytical viability of this phenomenon for HPTLC detection using coralyne as a probe is explored, and fluorescent responses of a number of analytes on the coralyne system are rationalized in the light of a previously proposed model. This establishes that the resulting intensity for a probe in the presence of a given compound can be explained as a balance between radiative (contribution of non-specific interactions) and non-radiative processes (specific interactions), the latter producing fluorescence quenching. Experimental results and proposed model suggest that this phenomenon may be general for practically all kinds of analytes-
dc.descriptionSpanish Ministerio de Educación y Ciencia (MEC): project CTQ2005-00227/PPQ Diputación General de Aragón (DGA): project PM010-
dc.descriptionPeer reviewed-
dc.format478226 bytes-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherElsevier-
dc.relationhttp://dx.doi.org/10.1016/j.chroma.2007.01.138-
dc.rightsopenAccess-
dc.subjectDetection-
dc.subjectFluorescence scanning densitometry-
dc.subjectPlanar chromatography-
dc.titleCoralyne cation, a fluorescent probe for general detection in planar chromatography-
dc.typeArtículo-
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