埃洛石基分子印迹荧光传感器检测罗丹明6G  

Detection of Rhodamine 6G by a HNTs-Based Molecularly Imprinted Fluorescence Sensor

作　　者：王天聪 李媛媛 李皓文 刘刚 张铭亮 相皓泷 何娟[1] WANG Tian-cong;LI Yuan-yuan;LI Hao-wen;LIU Gang;ZHANG Ming-liang;XIANG Hao-long;HE Juan(School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《化学试剂》2023年第12期84-89,共6页Chemical Reagents

基　　金：郑州市科技局自然科学项目协同创新专项项目(22ZZRDZX11);河南工业大学青年骨干教师培育计划项目;河南省高校国家级大学生创新创业训练计划项目(202210463027);河南工业大学自科创新基金项目(2020ZKCJ03)。

摘　　要：以无机材料埃洛石纳米管为载体,以聚集诱导发光分子为荧光基团,通过沉淀聚合法合成表面分子印迹荧光传感器,并将其用于检测罗丹明6G。采用扫描电镜(SEM)、傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)等对传感器进行表征,表明已成功合成表面分子印迹荧光传感器。在检测罗丹明6G的过程中,传感器展现出由蓝色到橙色的荧光变化,其荧光强度之比(I_(565)/I_(418))与罗丹明6G浓度(0~5μmol/L)具有良好的线性关系(R^(2)=0.9935),检出限为2 nmol/L。此外,该传感器选择性好、抗干扰能力强,且具有良好的荧光稳定性和可重复使用性。在实际样品检测中,罗丹明6G的回收率为89.28%~109.73%,相对标准偏差小于2.57%。该研究为罗丹明6G的高效快速检测提供了一种可行的方法。A surface molecularly imprinted fluorescence sensor for detecting rhodamine 6G was synthesized by precipitation polymerization using inorganic material halloysite nanotubes as the carrier and aggregation-induced emission molecule as the fluorophore.The sensor was characterized by scanning electron microscopy(SEM),Fourier-transform infrared spectroscopy(FT-IR)and X-ray diffraction(XRD),which indicated that the surface molecularly imprinted fluorescence sensor was successfully synthesized.During the detection of rhodamine 6G,a color change from blue to orange was observed.Meanwhile,the ratio of fluorescence intensities(I_(565)/I_(418))showed good linearity(R^(2)=0.9935)with rhodamine 6G in the concentration range of 0~5μmol/L with a detection limit of 2 nmol/L.In addition,the sensor exhibited good selectivity,strong interference immunity,and excellent fluorescence stability and reusability.The recoveries of rhodamine 6G ranged from 89.28%to 109.73%,with relative standard deviations less than 2.57%in the analysis of real samples.This study provided a feasible method for efficient and rapid detection of rhodamine 6G.

关 键 词：表面分子印迹聚合物 荧光传感器 罗丹明6G 埃洛石 聚集诱导发光 

分 类 号：O657.39[理学—分析化学]