CAJ | 학술논문

通过电化学方法制备了3类化学修饰电极：电化学氧化法将4-氨基苯甲酸（4-Amino-benzoic acid,4-ABA）共价修饰到铂电极上,形成单分子层膜修饰电极（4-ABA/Pt）;恒电位沉积法将铂纳米粒子（Nanoparticles,NPs）修饰到铂电极上,形成NPs修饰电极（PtNPs/Pt）;先恒电位,然后循环伏安将3-噻吩丙二酸（3-Thiophenemalonic acid,3-TMA）聚合到铂电极上,形成聚合物薄膜修饰电极（poly（3-TMA）/Pt）。线性伏安法测试3种修饰电极在不同温度下传感扑热息痛（Paracetamol,PCT）,得出PCT在较宽浓度范围内都与其氧化峰电流呈良好的线性关系,但在不同温度条件下灵敏度是不同的。通过分析温度对PCT活度、离子导体和电子导体电阻的影响,对这一结果给出合理的解释。
통과전화학방법제비료3류화학수식전겁：전화학양화법장4-안기분갑산（4-Amino-benzoic acid,4-ABA）공개수식도박전겁상,형성단분자층막수식전겁（4-ABA/Pt）;항전위침적법장박납미입자（Nanoparticles,NPs）수식도박전겁상,형성NPs수식전겁（PtNPs/Pt）;선항전위,연후순배복안장3-새분병이산（3-Thiophenemalonic acid,3-TMA）취합도박전겁상,형성취합물박막수식전겁（poly（3-TMA）/Pt）。선성복안법측시3충수식전겁재불동온도하전감복열식통（Paracetamol,PCT）,득출PCT재교관농도범위내도여기양화봉전류정량호적선성관계,단재불동온도조건하령민도시불동적。통과분석온도대PCT활도、리자도체화전자도체전조적영향,대저일결과급출합리적해석。
Three kinds of chemically modified electrode（CME） are prepared with electrochemical method.With electrochemical oxidation,4-aminobenzoic acid（4-ABA） is covalently modified on Pt electrode to form the 4-ABA/Pt.With the potentiostatic method,the Pt nanoparticles（NPs） are electrodeposited on Pt electrode to form the PtNPs/Pt.With the potentiostatic process followed by cyclic voltammetry method,3-thiophenemalonic acid（3-TMA） is electropolymerized on Pt electrode to form the poly（3-TMA）/Pt.CMEs are applied to sense paracetamol（PCT） at different temperatures.The results show that the PCT concentration has a linear relationship with the oxidation peak current in a wide concentration range but the sensitivity is different at different temperature.The temperature effect on the PCT activity and resistance of ionic conductor and electronic conductor can be used to explain the result.