电化学方法研究环糊精-硝基氯苯包络物  

Studies on the Inclusion Complex of Cyclodextrins with Nitrochlorobenzene by Electrochemical Methods

作　　者：罗川南[1] 周长利[2] 贺龙强[2] 张龙军[2] 蒋生祥[1] 

机构地区：[1]中国科学院兰州化学物理研究所,兰州730000 [2]济南大学化学与化工学院,济南250022

出　　处：《分析化学》2003年第11期1291-1294,共4页Chinese Journal of Analytical Chemistry

基　　金：山东省教育厅科技发展计划项目 (No .J0 2C0 7)

摘　　要：在KCl水溶液介质中 ,以单扫示波极谱及循环伏安法研究了硝基氯苯及其与各种环糊精包络物的电化学行为。硝基氯苯与 β 环糊精、羟乙基 氨基 6 去氧 β 环糊精、羟丙基 β 环糊精、羟乙基 β 环糊精的包络比均为1∶1。测定了不同温度下各包络物的包络常数。通过测量溶液的热力学参数ΔH、ΔS、ΔG 。In a buffer solution of 0.3 mol/L KCl (pH 5.74), the electrochemical behavior of nitrochlorobenzene and inclusion complexes of nitrochlorobenzene with beta-cyclodextrin (beta-CD), CD', hydroxylethyl (HE)-beta-CD and hydroxypropyl. (HP)-beta-CD were studied by single-sweep oscilloscopic polarography and cyclic voltammography. The molar ratio of inclusion complexes of nitrochlorobenzene with CDs are 1 : 1, the inclusion constants in different temperatures have been determined. The inclusion phenomenon was discussed by measuring various thermodynamics parameters such as the enthalpy of solution (DeltaH), entropy of solution (DeltaS), free energy of solution (DeltaG).

关 键 词：电化学方法 环糊精 硝基氯苯 包络物 水污染 废水处理 

分 类 号：O657.1[理学—分析化学]