基于山梨酸钾衍生多孔碳修饰电极用于橙皮素检测  

Detection of Hesperetin Using an Interconnected Porous Carbon Modified Electrode Based on Derivation of Potassium Sorbate

作　　者：李可欣 陈泇冰 潘永全 LI Ke-xin;CHEN Jia-bing;PAN Yong-quan(Laboratory Animal Center of Chongqing Medical University,Chongqing400016,China;School of Chemical and Environment Engineering,Hubei Minzu University,Enshi445000,China)

机构地区：[1]重庆医科大学实验动物中心,重庆400016 [2]湖北民族大学化学与环境工程学院,湖北恩施445000

出　　处：《分析测试学报》2020年第5期612-618,共7页Journal of Instrumental Analysis

基　　金：重庆市科技计划项目(cstc2015shmszx120017)。

摘　　要：以有机盐山梨酸钾(PS)作为模板,在氮气氛围下进行一步热解处理,制备出一种衍生的三维互连的多孔碳材料(PSIPC)。采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线粉末衍射(XRD)、X射线光电子能谱(XPS)、热重分析(TGA)及N 2吸附-脱附测试对该多孔碳材料进行表征。于不同热解温度下制备电极材料PSIPC-X(X=700、800、900℃),并采用滴涂法制备了山梨酸钾衍生多孔碳修饰电极(PSIPC-700/GCE、PSIPC-800/GCE及PSIPC-900/GCE),使用循环伏安法(CV)和差示脉冲伏安法(DPV)考察了橙皮素(HSP)在PSIPC-900/GCE上的电化学行为。结果表明,在最优条件下,HSP在该电极上的检测范围为0.05~15.0μmol/L,检出限为0.021μmol/L。该方法灵敏度高、检测范围广,可用于实际样品的检测。An electrochemical method was developed for the detection of hesperetin(HSP)using a three-dimensional potassium sorbate derived interconnected porous carbon(PSIPC)modified electrode.The PSIPC material was synthesized by pyrolyzing method,using organic salt potassium sorbate(PS)as template via heating treatment in nitrogen atmosphere,and was characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray powder diffraction(XRD),X-photoelectron spectroscopy(XPS),thermogravimetric analysis(TGA)and N 2 adsorption and desorption tests.PSIPC-700,PSIPC-800 and PSIPC-900 obtained in different temperatures were directly dropped onto the surface of a glassy carbon electrode to obtain PSIPC-modified electrodes(PSIPC-700/GCE,PSIPC-800/GCE and PSIPC-900/GCE).The electrochemical behaviors of HSP on PSIPC-900/GCE were investigated by cyclic voltammetry(CV)and differential pulse voltammetry(DPV).Under the optimized conditions,the linear range for HSP was in the range of 0.05-15.0μmol/L.The limit of detection was as low as 0.021μmol/L.With high sensitivity and wide detection range,this method could be applied in the detection of HSP in real samples.

关 键 词：山梨酸钾 多孔碳 橙皮素(HSP) 电化学检测 

分 类 号：O657.1[理学—分析化学] TQ460.72[理学—化学]