Journal
ANALYTICAL METHODS
Volume 5, Issue 7, Pages 1843-1847Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ay26492k
Keywords
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Funding
- Department of Education of Fujian Province [JA 09241]
- Major Fujian science and technology project [2011YZ0001-1]
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A fluorescent probe, a rhodamine 6G derivative (R6GD), has been designed and synthesized for the determination of Fe(III). In HAc-NaAc buffer solution, R6GD exhibits highly selective and sensitive response toward Fe(III) based on the fluorescence quenching mechanism of R6GD due to the heavy atom effect of I-3(-) formed in the reaction between KI and Fe(III). Under the optimal conditions, the concentration of Fe(III) showed good linear relationship with the fluorescence intensity change of R6GD. The linear response range of Fe(III) (R-2 = 0.9923) was found from 0.1 to 6.0 mu mol L-1 with the detection limit of 0.05 mu mol L-1 of Fe(III). The recovery of the approach in the determination of Fe(III) in real water samples was 83.3-99.5%.
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