氧敏荧光纳米聚合物胶囊在溶解氧传感器中的应用  

Application of Oxygen Sensitive Fluorescent Nanocapsules in Dissolved Oxygen Sensor

作　　者：郭飞[1] 蔡晨鑫 宁杰[2] 

机构地区：[1]浙江工业大学海洋学院,浙江杭州310014 [2]浙江工业大学化学工程学院,浙江杭州310014

出　　处：《浙江化工》2017年第8期21-24,共4页Zhejiang Chemical Industry

基　　金：浙江省自然科学基金项目(LY15B060006);国家自然科学基金项目(21104066)

摘　　要：根据可逆加成断裂链/链转移(RAFT)细乳液聚合法制备包裹有荧光指示剂的纳米聚合物胶囊,并将该纳米聚合物胶囊制备成氧敏荧光膜应用于溶解氧传感器中,结果表明:该溶解氧传感器具有良好的可逆性、重复性,响应时间13.5 s,灵敏度为2.35。其工作曲线呈非线性,相关系数R^2=0.999,符合非均相系统的"two-site"模型。其检测极限为0.21 mg/L(n=10),在0.21~8.96 mg/L范围内可以很好地检测溶解氧含量。A oxygen sensitive fluorescent nanocapsule was synthesized via interfacial confined reversible addition fragmentation chain transfer （ RAFT） miniemulsion polymerization. The oxygen sensitive film was prepared with the nanocapusles and applied in a dissolved oxygen sensor to testing the oxygen sensing per-formance. The results showed that the dissolved oxygen sensor possessed excellent performance with full re-versibility and repeatability, fast response time （13.5 s）, good sensitivity （2.35）. Its work curve was nonlinear and conform to the two-site model（ R2=0.999） which applies to the heterogeneous systems. The limit of detec-tion of the dissolved oxygen sensor was 0.21 mg/ L（ n=10） and it could work well in 0.21-8.96 mg/ L.

关 键 词：溶解氧 光学氧传感器 纳米聚合物胶囊 

分 类 号：O631[理学—高分子化学] O657.3[理学—化学]