摘要
荧光探针法测定甜菜碱cmc的研究任学贞,李干佐,王弘立,翟立民,隋卫平,徐欣艳(山东大学化学系,济南,250100)关键词甜菜碱,芘,临界胶束浓度Ekwall等[1]发现,表面活性剂的溶液能够增溶多环芳烃并发射较强的荧光.在常用的测定表面活性剂临界胶...
The fluorescence characteristics of I5/I1 and I3/I1 of pyrene which is sensitive to the environment of probe was used to study the critical micelle concentration(cmc)of N-dodecylbetaine and N-tetradecylbetaine.The effect of salt concentration on the cmc values was studied.The results obtained indicate that cmc values determined from the parametersI5/I1 of pyrene are close to that from the surface tension measurements,and more accurate than that from I3/I1.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第8期1295-1297,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金