Potential application of 2-(6-ethylamino-3-ethylimino-2,7-dimethyl-3H-xanthen-9-yl) benzoic acid phenyl thiourea for mercury determination |
| |
| Authors: | Alessandra P Vargas Diego Alves Caroline Wagner Thais Posser Robson Luiz Puntel |
| |
| Institution: | 1. Departamento de Bioquímica , Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil;2. Instituto de Química e Geociências, Universidade Federal de Pelotas , Pelotas , Brazil;3. Centro de Ciências Exatas e Tecnológicas , Universidade Federal do Pampa , Ca?apava do Sul , Brazil;4. Campus S?o Gabriel , Universidade Federal do Pampa , S?o Gabriel , Brazil;5. Campus Uruguaiana , Universidade Federal do Pampa , Uruguaiana , Brazil |
| |
| Abstract: | Heavy metal contamination of the environment is a public health problem and research to develop new tools for monitoring the environmental impact of these elements is necessary. This study describes the preparation of a rhodamine-based probe 1 and its potential applications for detecting mercuric ion Hg(II)] in samples from a nutrition media containing Salvinia auriculata. It was observed that an excess of probe 1 led to quenching in the fluorescence/absorption response, which was evidenced by a decrease in the signal when the stoichiometry differed from 1:1. Consequently, this probe is not suitable for quantitative analysis of Hg(II). Also, probe 1 reacts with methylmercury (MeHg) with different stoichiometry than that observed for Hg(II). These results indicate the potential application of probe 1 for qualitative detection of Hg(II) and MeHg in environmental samples. |
| |
| Keywords: | mercuric ion mercury probe macrophytes Salvinia auriculata chemosensor |
|
|
