Publicação
Synthesis and evaluation of an azo dye for the chromogenic detection of metal cations
| Resumo: | A carboxylic acid azo dye, Dabcyl, was synthesized and evaluated as a colorimetric chemosensor for metal cations with biological and environmental importance. The dye was prepared in high yield and characterized by 1H and 13C NMR and UV-vis absorption spectroscopies. A preliminary chemosensing study showed that Dabcyl displayed a marked color change, from light yellow to pink, for Hg2+, Fe2+, Pd2+, Sn2+ and Al3+ in acetonitrile solution. Consequently, spectrophotometric titrations were carried out for this dye with selected cations, which clearly indicated that Dabcyl has potential application as a chromogenic probe for the cations under study with remarkable sensitivity and a marked color change. |
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| Autores principais: | Martins, Cátia Daniela Figueiredo |
| Outros Autores: | Raposo, M. Manuela M.; Costa, Susana P. G. |
| Assunto: | Azo dyes Colorimetric chemosensor Dabcyl Metal cations Naked-eye detection Ciências Naturais::Ciências Químicas Saúde de qualidade |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | A carboxylic acid azo dye, Dabcyl, was synthesized and evaluated as a colorimetric chemosensor for metal cations with biological and environmental importance. The dye was prepared in high yield and characterized by 1H and 13C NMR and UV-vis absorption spectroscopies. A preliminary chemosensing study showed that Dabcyl displayed a marked color change, from light yellow to pink, for Hg2+, Fe2+, Pd2+, Sn2+ and Al3+ in acetonitrile solution. Consequently, spectrophotometric titrations were carried out for this dye with selected cations, which clearly indicated that Dabcyl has potential application as a chromogenic probe for the cations under study with remarkable sensitivity and a marked color change. |
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