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Potential application of 2-(6-ethylamino-3-ethylimino-2,7-dimethyl-3H-xanthen-9-yl) benzoic acid phenyl thiourea for mercury determination

Vargas, Alessandra P ; Alves, Diego ; Wagner, Caroline ; Posser, Thais ; Puntel, Robson Luiz ; Rocha, João Batista T

Chemistry and ecology, 2012-08, Vol.28 (4), p.355-364 [Periódico revisado por pares]

Abingdon: Taylor & Francis

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Título:
Potential application of 2-(6-ethylamino-3-ethylimino-2,7-dimethyl-3H-xanthen-9-yl) benzoic acid phenyl thiourea for mercury determination
Autor: Vargas, Alessandra P ; Alves, Diego ; Wagner, Caroline ; Posser, Thais ; Puntel, Robson Luiz ; Rocha, João Batista T
Assuntos: absorption ; benzoic acid ; chemosensor ; environmental impact ; environmental monitoring ; fluorescence ; Freshwater ; heavy metals ; macrophytes ; mercuric ion ; mercury ; mercury probe ; methylmercury compounds ; nutrition ; pollution ; public health ; quantitative analysis ; Salvinia auriculata ; stoichiometry ; thiourea
É parte de: Chemistry and ecology, 2012-08, Vol.28 (4), p.355-364
Notas: http://dx.doi.org/10.1080/02757540.2012.656610
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SourceType-Scholarly Journals-1
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Descrição: 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.
Editor: Abingdon: Taylor & Francis
Idioma: Inglês

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Potential application of 2-(6-ethylamino-3-ethylimino-2,7-dimethyl-3H-xanthen-9-yl) benzoic acid phenyl thiourea for mercury determination

Vargas, Alessandra P ; Alves, Diego ; Wagner, Caroline ; Posser, Thais ; Puntel, Robson Luiz ; Rocha, João Batista T

Abingdon: Taylor & Francis

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