一种新的重原子微扰剂氯代叔丁烷在亚硫酸钠化学除氧环糊精诱导室温燐光法中的应用研究  

A Study of t-Butyl Chloride as Heavy Atom Perturber in Chemical Deoxygenation-Cyclodextrin Induced Room Temperature Phosphorimetry

作　　者：张淑珍[1] 魏雁声 谢剑炜[2] 刘长松[1] 

机构地区：[1]山西大学化学系 [2]中国军事医学科学院毒物药物研究所

出　　处：《分析化学》2000年第6期678-681,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金!29575204;山西省青年基金

摘　　要：以氯代叔丁烷作重原子微扰剂采用亚硫酸钠化学除氧技术建立了菲、7，8-苯并喹啉、2-溴代萘在环糊精介质中的室温光分析法。通过对比平衡时间和第三组分的浓度对于β-环糊精／光体／氯代叔丁烷和β-环糊精／光体／叔丁醇两种体系中光的光强度、光寿命的不同影响，探讨了氯代叔丁烷和叔丁醇诱导产生室温光机理的差异。Using t-butyl chloride as a heavy atam perturber,we estabished a cyclodextrin(CD) induced room temperature phosphorimetry of phenanthrene, 7,8-benzoquinoline and 2-bromonaphthalene by Na2SO3 chemical deoxygenating technique.The effects of equilibrium time and the concentration of perturber on the phosphorescence intensity and lifetime of phosphors between β-CD/phosphors/t-butyl chloride (t-BuCl) system and β-CD/phosphors/t-butanol system had been investigated comparatively,and the different mechanism of inducing room temperature phosphorescence (RTP) between the two systems had been proposed: the steric matching effect between t-BuCl and β-CD, the intramolecular heavy atom effect and hydrophobicity of t-BuCl molecule were the important reasons for inducing RTP,whereas the steric matching effect was the sole interaction between t-BuOH and β-CD.Thus t-BuCl was an ideal heavy atom perturber.

关 键 词：氯代叔丁烷 CD-RTP 室温磷光 亚硫酸钠 除氧 

分 类 号：O644[理学—物理化学]