碳点分子印迹传感器对水产品和动物产品中己烯雌酚残留的检测  

Carbon dots based molecularly imprinting sensor for the determination of diethylstilbestrol residues in aquatic and animal products

作　　者：何雨 王硕[2] 王俊平[1] HE Yu;WANG Shuo;WANG Junping(State Key Laboraotry of Food Nutrition and Safety,College of Biotechnology and Food Engineering,School of Food Science and Engineering,Tianjin,300457;Tianjin Key Laboratory of Food Science and Health,School of Medicine,Nankai University,Tianjin 300071)

机构地区：[1]天津科技大学食品营养与安全教育部重点实验室,食品科学与工程学院,天津300457 [2]南开大学医学院,天津300071

出　　处：《分析试验室》2020年第7期755-759,共5页Chinese Journal of Analysis Laboratory

基　　金：国家重点研发项目(2016YFD0401202);天津创新平台专项(17PTGCCX00230)资助。

摘　　要：将分子印迹技术与荧光传感结合,以碳点为荧光传感材料,己烯雌酚为模板制备出具有高选择性识别性能的碳点分子印迹传感器,用于检测水产品和动物产品中的己烯雌酚。在0.02~7.45 mg/L范围内,CDs@MIP的荧光猝灭率(F0/F)随体系中己烯雌酚的浓度变化符合Stern-Volmer方程,方法检出限为0.059μg/L。己烯雌酚的回收率范围在81.7%~110.3%,相对标准偏差不超过10.7%。结果表明制备的CDs@MIP可方便灵敏地检测样品中己烯雌酚的残留。Carbon dots was used as fluorescence sensing material and diethylstilbestrol was used as template to prepare carbon dots based molecularly imprinting sensor( CDs @ MIP) with high selective recognition performance.The sensor was used to detect diethylstilbestrol in aquatic and animal products.In the range of 0.02-7.45 mg/L,the relationship between the fluorescence quenching rate(F0/F) of CDs @ MIP and the concentration of diethylstilbestrol in the system accords with Stern-Volmer equation, with the LOD of 0.059 μg/L.The recoveries of diethylstilbestrol were 81.7%-110.3%,and the RSD was less than 10.7%.The proposed CDs@ MIP method provides a tool for convenient and sensitive determination of diethylstilbestrol residues in actual samples.

关 键 词：碳点 己烯雌酚 分子印迹 荧光传感器 

分 类 号：O657.3[理学—分析化学]