%0 Journal Article
%T 葫芦[7]脲对孔雀石绿的包结作用及应用<br>Inclusion Complex of Malachite Green with Cucurbit[7]uril and Detection of Malachite Green using Cucurbit[7]uril
%A 唐冬宝
%A 孙军勇
%A 武凯
%A 李涛
%A 周运友
%J Advances in Analytical Chemistry
%P 7-13
%@ 2163-1565
%D 2012
%I Hans Publishing
%R 10.12677/aac.2012.22002
%X 利用荧光光谱滴定法研究孔雀石绿和葫芦[7]脲的包结作用，在一定的浓度范围内，我们发现孔雀石绿的荧光强度随着葫芦[7]脲的浓度的增加而增加，同时，最大发射峰的位置发生了一定程度的红移。我们利用了紫外–可见吸收光谱、荧光光谱、IR、1H NMR和量子化学计算等方法研究了水溶液中孔雀石绿与葫芦[7]脲之间的包结行为，探讨了MG-CB[7]的包结机理。相关的结果表明孔雀石绿与葫芦[7]之间形成1:1的包结络合物。该方法的检出限是4.2 × 10–8 mol·L–1。<br />
The interaction between malachite green (MG) and cucurbit[7]uril (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 cucurbit[7]uril. 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.
%K 荧光；葫芦[7]脲；孔雀石绿；包结作用；稳定常数<br/>Fluorescence
%K Cucurbit[7]uril
%K Malachite Green
%K Inclusion Interaction
%K Stability Constants of Complexation
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=653