膜与蛋白质溶液的相互作用及膜污染机制的能谱研究  

SPECTROSCOPY STUDY ON INTERACTION BETWEEN POLYSULFONE MEMBRANE AND BSA SOLUTION AND MEMBRANE FOULING MECHANISM

作　　者：伍艳辉[1] 王志[1] 何菲[2] 王世昌[1] 

机构地区：[1]天津大学化学工程研究所 [2]天津大学一碳化工国家重点实验室,天津300072

出　　处：《化工学报》2001年第11期1026-1029,共4页CIESC Journal

基　　金：国家自然科学基金资助项目 (No .2 9976 0 31)~~

摘　　要：X-ray Photoelctron spectroscopy (XPS) is used to study BSA adsorption on polysulfone (PS) membrane in static and dynamic conditions. The atomic compositions from XPS measurement show that the adsorption ratio, which is defined as the number of made of BSA over that of PS in the test scope, increases with the adsorption time, and dynamic adsorption is more severe than static adsorption at the same adsorption time. The fitting spectra indicate that there are chemical interactions with electron transfer between BSA and PS membrane. Further analysis shows that O 2 dissolved in BSA solution also participates in chemical interaction. These results can explain why the fouling of PS membrane by BSA solution is serious.X-ray Photoelctron spectroscopy (XPS) is used to study BSA adsorption on polysulfone (PS) membrane in static and dynamic conditions. The atomic compositions from XPS measurement show that the adsorption ratio, which is defined as the number of made of BSA over that of PS in the test scope, increases with the adsorption time, and dynamic adsorption is more severe than static adsorption at the same adsorption time. The fitting spectra indicate that there are chemical interactions with electron transfer between BSA and PS membrane. Further analysis shows that O 2 dissolved in BSA solution also participates in chemical interaction. These results can explain why the fouling of PS membrane by BSA solution is serious.

关 键 词：X射线光电子能谱 吸附 相互作用 膜污染 膜过滤 蛋白质 膜分离 膜 

分 类 号：Q51[生物学—生物化学] TQ028.8[化学工程]