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Hg2+ -selective fluorescent probe based on rhodamine 6G and its application in aqueous media

journal contribution
posted on 2016-01-01, 00:00 authored by L Zhang, W Tan, G Li, Colin BarrowColin Barrow, Wenrong YangWenrong Yang, H Wang
Based on rhodamine 6G, a highly sensitive and selective fluorescent sensor R6G1 for Hg2+ detection had been designed and prepared. It was synthesized through the well-known reaction that thiourea derivatives with amine could easily be transformed into guanidine derivatives with the promotion of Hg2+. By coordination with Hg2+, R6G1 exhibited high sensitivity and selectivity over other metal ions in aqueous systems. Furthermore, fluorescence titration experiments established the well-fitted linearity function of the fluorescent intensity with the concentration of Hg2+ in aqueous solution. The results showed that R6G1 provided high water solubility and high selectivity toward Hg2+ but no significant response toward other competitive cations and anions. It was suggested that the chemosensor would find its application in environmental field requiring rapid and accurate Hg2+ ion analysis.

History

Journal

Desalination and water treatment

Volume

57

Issue

60

Pagination

29434 - 29438

Publisher

Taylor and Francis

Location

London, Eng.

ISSN

1944-3994

eISSN

1944-3986

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2016, Balaban Desalination Publications