Electrochemical Study on Reactive Red 15 and its Interaction with Cyclodextrins
Electrochemical Study on Reactive Red 15 and its Interaction with Cyclodextrins
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DOI：
10.1007/s10847-006-9089-y
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发表时间：
2006-03
影响因子：
2.3
通讯作者：
You-Qin Li;Yu-jing Guo;Jing-hao Pan
中科院分区：
文献类型：
--
作者：
You-Qin Li;Yu-jing Guo;Jing-hao Pan
研究了活性艳红K-2G（C.I.用极谱法和伏安法研究了在0.1mol·l-1NaCl（pH6.9）介质中活性红15）与环糊精的显色反应。 在pH 6.9的NaCl底液中，活性红15有一灵敏的二阶导数还原峰（ip ″）。峰电位约为− 0.78 V（相对于SCE）。在活性红15溶液中加入环糊精后，活性红15的还原峰电流（ip ″）降低，峰电位（Ep）正移。研究表明，活性红15与9种环糊精能形成1：1的包合物。用“电流法”计算包结常数。此外，还比较了不同种类环糊精的包结能力，为活性红15和环糊精的应用提供了基础数据。
In this paper, the electrochemical behavior of the interaction of Reactive Brilliant Red K-2G (C.I. Reactive Red 15) with cyclodextrins in 0.1 mol · l−1NaCl (pH 6.9) has been studied by polarography and voltammetry. In a supporting electrolyte of NaCl (pH 6.9), a sensitive second derivative reduction peak (ip″) of Reactive Red 15 was found by linear sweep voltammetry (LSV). The peak potential is about −0.78 V (versus SCE). On the addition of CDs into the Reactive Red 15 solution, the reduction peak current (ip″) of Reactive Red 15 decreases and the peak potential (Ep) shifts to a more positive potential. The study shows that Reactive Red 15 can form 1:1 inclusion complexes with nine CDs. The inclusion constants were calculated by “electric current method”. Furthermore, the inclusion ability of different kinds of cyclodextrins was compared, which provided some elemental data for application of Reactive Red 15 and cyclodextrins.