Inclusion Complex of Malachite Green with Cucurbituril and Detection of Malachite Green using Cucurbituril
Abstract: The interaction between malachite green (MG) and cucurbituril (CB7) had been studied based on fluores-cence and 1H NMR spectroscopic results. The interaction mechanism was also discussed concretely based on 1H NMR results. The fluorescence intensity of malachite green (MG) enhanced strongly and a slight red shift was observed at the maximum emission peak when added into cucurbituril. We had found that the formation of the complex at a 1:1 complex stoichiometry and the association constant was calculated by applying a deduced equation. The thermody-namic parameters such as ΔH and ΔS values were obtained according to Van’t Hoff equation, respectively. We prepared the solid inclusion complex from co-evaporation method and characterised it by 1H NMR、IR. For the efficient detection of malachite green, the limit of detection was 4.2 × 10–8 mol·L–1 from our experiments which will make our method applied to detect the malachite green in sewage effectively.
文章引用: 唐冬宝 , 孙军勇 , 武凯 , 李涛 , 周运友 (2012) 葫芦脲对孔雀石绿的包结作用及应用。 分析化学进展， 2， 7-13. doi: 10.12677/aac.2012.22002
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