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A Rhodamine-Based Fluorescent and Colorimetric Chemodosimeter for the Rapid Detection of Hg<sup>2+</sup> Ions in Aqueous Media
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References
2005
Year
EngineeringHg2+ IonsChemistryChemical EngineeringBiosensing SystemsAnalytical ChemistryClinical ChemistryAnion SensingCation SensingChemical SensorBiophysicsRhodamine-based FluorescentPhotochemistryColorimetric ChemodosimeterAqueous MediaElectrochemistryRoom TemperatureElectroanalytical SensorChemical ProbeMedicineAtomic Fluorescence SpectroscopyDrug Analysis
A rhodamine-based fluorescent and colorimetric chemodosimeter for the rapid detection of Hg2+ ions in aqueous media was developed. The system, which utilizes an irreversible Hg2+-promoted oxadiazole forming reaction, responds instantaneously at room temperature in a 1:1 stoichiometric manner to the amount of Hg2+. The selectivity of this system for Hg2+ over other metal ions is remarkably high, and its sensitivity is below 2 ppb in aqueous solutions.
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