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Pàgina inicial > Articles > Articles publicats > A nitrocellulose paper strip for fluorometric determination of bisphenol A using molecularly imprinted nanoparticles |
Data: | 2019 |
Resum: | The authors describe a test stripe for fluorometric determination of the endocrine disruptor bisphenol A (BPA). Graphene quantum dots (GQDs) were immobilized on molecularly imprinted nanoparticles which then were placed on nitrocellulose paper. The GQDs display blue fluorescence (with excitation/emission peaks at 350/440 nm) which is reduced in the presence of BPA. The test stripe has a 43. 9 ± 0. 8 μg. L¯¹ limit of detection in case of water samples. The stripe was applied to the determination of BPA in (spiked) tap water and sea water, and the LODs were found to be 1. 8 ± 0. 2 μg·L¯¹ and 4. 2 ± 0. 5 μg·L¯¹ , respectively. Structural analogs of BPA, such as aminophenol, phenol, hydroquinone and naphthol were found not to interfere. |
Ajuts: | European Commission 785219 Ministerio de Economía y Competitividad MAT2017-87202-P Ministerio de Economía y Competitividad SEV-2017-0706 |
Nota: | Altres ajuts: this work is also funded by the CERCA Programme / Generalitat de Catalunya. |
Drets: | Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Graphene quantum dot ; Endocrine disruptor ; Fluorescence quenching ; Paper sensor ; Molecular recognition |
Publicat a: | Mikrochimica acta, Vol. 186, issue 4 (April 2019) , art. 218, ISSN 1436-5073 |
Postprint 18 p, 1.3 MB |