高等学校化学学报2024，Vol.45Issue(6)：22-29,8.DOI:10.7503/cjcu20240106
双极电化学发光-分子印迹传感器检测水环境中全氟辛烷磺酸
Detection of Perfluorooctane Sulfonate in Aqueous Environment Based on Molecular Imprinting Coupled Bipolar Electrochemiluminescence Sensor
摘要
Abstract
Combining the specific recognition ability of molecular imprinting polymer(MIP)and the high sensitivity and anti-interference characteristics of bipolar electrochemical luminescence sensing(BPECL),an MIP/BPECL sensor was constructed for the detection of perfluorooctane sulfonate(PFOS)in sewage.Using PFOS as the template molecule and o-phenylenediamine(o-PD)as the functional monomer,the molecular-imprinted polymer was specifi-cally identified by negative extreme electropolymerization of bipolar electrodes.The electrodes were characterized by means of scanning electron microscopy(SEM)and cyclic voltammetry(CV).The MIP/BPECL sensing system was constructed with ruthenium bipyridine/tri-n-propylamine[Ru(bpy)32+/TPrA]as the output signal at the positive extremity of the bipolar electrode.Under optimized conditions,the electrochemical sensor displayed a wide linear range from 1 nmol/L to 1000 nmol/L with a low limit of detection of 0.43 nmol/L(S/N=3).The sensor is applied to the actual sample of the environmental water labeling recovery test,and the result is good.The constructed MIP/BPECL sensor has the advantages of high sensitivity,good specificity and strong anti-interference ability.By changing the template molecule of molecular imprinting,it is expected to realize the application of this sensor in the detection of other environmental pollutants.关键词
全氟辛烷磺酸/分子印迹/双极电极/电化学发光Key words
Perfluorooctane sulfonate/Molecular imprinting/Bipolar electrode/Electrochemiluminescence分类
化学化工引用本文复制引用
黄声秀,刘利阳,杨伟强,汪庆祥,倪建聪..双极电化学发光-分子印迹传感器检测水环境中全氟辛烷磺酸[J].高等学校化学学报,2024,45(6):22-29,8.基金项目
国家自然科学基金(批准号:22376089)和福建省自然基金项目(批准号:2021J01991)资助. Supported by the National Natural Science Foundation of China(No.22376089)and the Fujian Provincial Natural Foundation,China(No.2021J01991). （批准号:22376089）
