光学氧敏感膜的溶解氧敏感特性及长期稳定性  

Dissolved Oxygen Sensing Characteristics and Long-term Stability of Optical Oxygen Sensing Films

作　　者：刘忠勋[1] 李坤[1] 刘慧超[1] 黄俊[1] 

机构地区：[1]武汉理工大学光纤传感技术国家工程实验室,武汉430070

出　　处：《武汉理工大学学报》2014年第2期12-15,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(61377092)

摘　　要：制备了4种光学氧敏感膜：CA膜、Sol-gel膜、PVC膜、PS膜，用SEM表征了其形貌。研究了4种光学氧敏感膜对溶解氧的敏感特性，其顺序为：PS膜〉Sol-gel膜〉CA膜〉PVC膜，响应时间在40～60S范围内，检测下限在0．5～3．0mg／L范围内。研究了4种光学氧敏感膜的长期稳定性，其顺序为：PS膜〉Sol-gelNI〉PVCNi〉CA膜。Four optical oxygen sensing films, such as CA film, soLgel film, PVC film, PS film, were prepared, and their ap- pearance was characterized by SEM. The sensing characteristics of dissolved oxygen for these four optical sensing films were stud- led, showing the following order：PS film〉sol-gel film〉CA film〉PVC film. The response times of these sensing films are in the range of 40-60 s,and their detecting limits are in the range of 0. 5-3. 0 mg/L. The long-term stability of these four sensing films were also studied, showing the following order： PS film〉Sol-gel film〉PVC film〉CA film.

关 键 词：光学氧敏感膜 敏感特性 长期稳定性 

分 类 号：Q50[生物学—生物化学]