Abstract
In this paper, a method for the determination of ILs, specifically 1-butyl-3-methyl imidazolium bromide( BMIB), was developped using mercaptoacetic acid (MAA) capped CdTe QDs as fluorescence probe. Under optimum conditions, the enhancement of fluorescence intensity of CdTe QDs was linearly in proportion to the concentration of BMIBin the range of 9.1x10-5-1.1x10-2 mol L-1 with a correlation coefficient of 0.996. The detection limit was 6.9x10-5 mol L-1. The proposed method was applied to the determination of trace BMIB in river water and tap water samples with satisfactory results.
Keywords: Ionic liquids, 1-Butyl-3-methylimidazolium bromide, CdTe quantum dots, Fluorescence enhancement
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