荧光光谱法研究β-环糊精与L-酪氨酸的主客体包络反应  

Study on the Inclusion Complexation Reaction of β-Cyclodextrin with L-Tyrosine by Fluorescence Spectrophotometry

作　　者：潘祖亭[1] 王润涛[1] 罗兆福[1] 马红燕[1] 徐勉懿[1] 

机构地区：[1]武汉大学化学系

出　　处：《分析试验室》1998年第2期16-19,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金

摘　　要：以荧光光谱法系统地研究了水溶液中β－环糊精与Ｌ－酪氨酸的主客体包络反应条件，包络物的荧光光谱性质，利用改进的Ｂｅｎｅｓｉ－Ｈｉｌｄｅｂｒａｎｄ法测定了包络物的形成常数，初步探讨了某些水溶性一元醇的存在对该包络物形成常数及荧光性质的影响。检出限为２×１０－７ｍｏｌ／Ｌ，平均回收率为９９．１％。The inclusion complexation reaction of β-cyclodextrin(β-CD) with Ltyrosine(L-Tyr) in the presence and absence of some selected alcohols were investigated by fluorescence spectrophotometry.The reaction conditions,the formation constant (Kf),the mechanism and the possibility of analytical application of the host guest inclusion complex of βCD with LTyr were studied and discussed based on the variation of the fluorescence intensity and the modified BenesiHildebrand′s equation

关 键 词：酪氨酸 环糊精 包络物 荧光光谱 

分 类 号：O629.7[理学—有机化学] O636.12[理学—化学]