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金属有机骨架材料构建环丙沙星电化学传感器的研究

本站小编 Free考研考试/2021-12-27

中文关键词:电化学传感器金属有机骨架材料环丙沙星水产品 英文关键词:Electrochemical sensorMetal organic framework materialCiprofloxacinAquatic product 基金项目:“十三五”国家重点研发计划项目(2019YFD0901702)、辽宁省科技厅攻关项目(2015103020)和泰山****蓝色产业领军人才团队支撑计划项目(鲁政办字(2015)19号)资助
作者单位E-mail
陈宏化学与材料工程学院
食品科学研究院 渤海大学 锦州 121013
redastar@163.com
王悦化学与材料工程学院
张文婷化学与材料工程学院
朱玉化学与材料工程学院
励建荣食品科学研究院 渤海大学 锦州 121013lijr6491@163.com
摘要点击次数:541 全文下载次数:0 中文摘要: 本文通过水热合成法合成了钴-对苯二甲酸金属有机骨架材料Co (BDC),并将其与聚丙烯酸钠(PAAS)混合后修饰到玻碳电极(GCE)表面,制得电化学传感器Co (BDC)-PAAS/GCE,通过循环伏安法和差分脉冲法研究了传感器的响应性能,并用于水产品中环丙沙星(CIP)检测。结果表明,在碱性条件下,Co(BDC)-PAAS/GCE对CIP具有较好的电催化作用。差分脉冲峰电流与CIP浓度在3.0×10-9~1.5×10-8 mol/L范围内呈线性关系,线性方程为I(μA)=99.8 CCIP+5.74(R2=0.989);在1.5×10-8~1.5×10-7 mol/L范围内呈线性关系,线性方程I(μA)=11.09 CCIP+7.09(R2=0.992),检出限为1.0×10-9mol/L。使用该传感器检测实际样品草鱼肉中CIP的加标回收率在95.0%~101.9%之间。该传感器制作简单,稳定性、选择性和重复性好,可满足水产品中CIP的快速检测需要。 英文摘要: Cobalt-terephthalic acid metal organic framework material (Co(BDC)) was synthesized through a hydrothermal method and characterized by scanning electron microscope and infrared spectrum. The hybrid material of Co(BDC) and sodium polyacrylate (PAAS) was cast on a glassy carbon electrode (GCE) to get a modified electrode Co(BDC)-PAAS/GCE for the electrochemical detection of CIP. The electrochemical study showed that Co(BDC) exhibited high catalytic effect on the reduction of CIP. The results showed that the peak current increased with the CIP concentration in the range of 3.0×10-9~1.5×10-8 mol/L with a calibration equation of I (μA)=99.8CCIP+5.74(R2=0.989), and in the range of 1.5×10-8~1.5×10-7 mol/L with a calibration equation of I (μA)=11.09CCIP+7.09 (R2=0.992). The detection limit is 1.0×10-9 mol/L (S/N=3). The Co(BDC)-PAAS/GCE exhibited excellent reproducibility, good stability and good selectivity and was successfully applied to the determination of CIP in aquatic samples. Recoveries obtained for the determination of CIP in spiked samples were between 95.0% and 101.9%. 查看全文查看/发表评论下载PDF阅读器 相关附件:附件1版权转让声明书 -->
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