分析化学2024，Vol.52Issue(6)：893-900,后插1-后插5,13.DOI:10.19756/j.issn.0253-3820.231370
GNs/6F-S-BI-PAEK复合物膜修饰玻碳电极同时测定重金属离子
Simultaneous Determination of Heavy Metal Ions with GNs/6F-S-BI-PAEK Composite Film Modified Glassy Carbon Electrode
摘要
Abstract
In this work,a novel GNs/6F-S-BI-PAEK composite film modified glassy carbon electrode (GCE) was fabricated for the simultaneous determination of heavy metals by using polymer 6F-S-BI-PAEK to disperse and functionalize graphene oxide nanosheets (GNs). The prepared GNs/6F-S-BI-PAEK composite film modified electrode was well characterized by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) techniques. The optimum modification and determination conditions were selected. Differential pulse voltammetry (DPV) experiments were performed for selective and sensitive determination of Co2+,Pb2+,Cd2+and Zn2+. Linear responses in the range of 0.5-60μg/L were obtained with the detection limit of 0.5μg/L. The 6F-S-BI-PAEK polymer film capsuling on the surface of GNS not only effectively prevented the agglomeration between the GNS,but also promoted to form a quite stable GNs/6F-S-BI-PAEK composite film on GCE. Moreover,the functionalized 6F-S-BI-PAEK film could be used to adsorb and enrich heavy ions effectively. The GNs/6F-S-BI-PAEK/GCE showed good reproducibility,stability,and was successfully employed for the accurate determination of Co2+,Pb2+,Cd2+and Zn2+in spiked lake water samples with satisfactory recoveries.关键词
高分聚合物膜/石墨烯/修饰玻碳电极/重金属离子/微分脉冲伏安法Key words
Polymer film/Graphene/Modified glassy carbon electrode/Heavy metal ions/Differential pulse voltammetry引用本文复制引用
周羽殊,王建黎,习玲玲..GNs/6F-S-BI-PAEK复合物膜修饰玻碳电极同时测定重金属离子[J].分析化学,2024,52(6):893-900,后插1-后插5,13.基金项目
浙江省自然科学基金项目(No.LY14B050003)资助.Supported by the Zhejiang Provincial Natural Science Foundation(No.LY14B050003). （No.LY14B050003）
