【作者】 姚淑艳； 王宗花； 朱玲艳； 郭新美； 张菲菲； 夏建飞；

【Author】 YAO shu-yan;WANG Zong-hua;ZHU Ling-yan;GUO Xin-mei;ZHANG Fei-fei;XIA Jian-fei;Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical and Environment Engineering, Qingdao University;

【机构】 青岛大学纤维新材料与现代纺织实验室 国家重点实验室培育基地 化学化工与环境学院；

【摘要】 <正>桑色素(Morin,分子式C15H10O7·2H2O),是一种天然的生物活性物质,属于黄体酮类化合物,桑色素可抑制酶活性,具有抗癌、抗炎、抗菌、抗动脉硬化、降低血糖等作用[1],建立快速、灵敏的检测桑色素的方法对中西药的质量控制十分必要。本文采用电聚合的方法制备了聚对氨基苯磺酸(PABSA)修饰电极,以循更多还原

【Abstract】 A poly( p-aminobenzene sulfonic acid) modified electrode( PABSA/GCE) was fabricated by electropolymerizing p-aminobenzene sulfonic acid on the surface of glassy carbon electrode(GCE). The electrochemical behaviors of morin were investigated using cyclic voltammetry(CV) and differential pulse voltammetry(DPV) at the modified electrode. In p H 7.0 PBS, morin generated a sensitive anodic peak at 0.214 V(curve a in Fig). Under the optimized conditions, DPV was used for detecting morin. The linear range is 5.0×10-7~1×10-3 mol/L with a detection limit of 1.0×10-7 mol/L for morin. The PABSA/GC electrode showed a good stability, high selectivity and wide linear range.更多还原