title: Two highly sensitive and selective colorimetric "off-on" rhodamine-based fluorescent chemosensor for Hg(II) in aqueous media.
abstract: Two novel rhodamine derivatives were designed and synthesized. They were successfully characterized by HR-MS, (1)H NMR and (13)C NMR. They were found to exhibit a reversible colorimetric response and exhibit high selectivity and sensitivity for Hg(II) ion over other commonly coexistent metal ions. Their selectivity is excellent, and the detection of Hg(II) at ppb level is possible. The colorimetric and fluorescent response to Hg(II) can be conveniently detected even by the naked eye, which provides a facile method for visual detection of Hg(II).
authors: Department of Chemistry, Phosphorus Chemical Engineering Research Center of Henan Province, Zhengzhou University, Zhengzhou, China.
authors: Di
authors: D
authors: Zhang
authors: Min
authors: M
authors: Wang
authors: Cuicui
authors: C
authors: Wang
authors: Man
authors: M
authors: Li
authors: Yong
authors: Y
authors: Ye
authors: Yufen
authors: Y
authors: Zhao
mesh_terms: D003124:Colorimetry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D008628:Mercury / Q000032:analysis*; D015394:Molecular Structure; D012235:Rhodamines / Q000138:chemical synthesis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D012235:Rhodamines; D014867:Water; D008628:Mercury
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