以316L不锈钢为基体的嵌入式预阳极化超薄碳糊电极同时测定多巴胺和酪氨酸  

The simultaneous determination of dopamine and tyrosine by an inlaying preanodized ultrathin carbon paste electrode on 316L-PAIUCPE

作　　者：吴呈珂[1,2] 卢曼 李晶[2] 上官恩波[1] 李全民[2] WU Cheng-ke;LU Man;LI Jing;SHANGGUAN En-bo;LI Quan-min(School of Materials Science and Engineering,Henan Normal University,Xinxiang 453007,China;School of Chemistry and Chemical Engineering,Henan Normal University,Xinxiang 453007,China)

机构地区：[1]河南师范大学材料科学与工程学院,河南新乡453007 [2]河南师范大学化学化工学院,河南新乡453007

出　　处：《化学研究与应用》2022年第2期297-302,共6页Chemical Research and Application

基　　金：国家自然科学基金项目(51604098)资助。

摘　　要：本文以316L不锈钢为基体,以简便快速的方法构建了嵌入式预阳极化超薄碳糊电极(316L-PAIUCPE)。探究了多巴胺(DA)和酪氨酸(Tyr)在该电极上的电化学响应行为。详细讨论了酸度对DA和Tyr氧化峰电位和峰电流大小的影响。并且DA和Tyr的氧化峰电流与其浓度分别在8.0×10^(-7)~8.0×10^(-5) mol·L^(-1)和6.0×10^(-7)~1.0×10^(-4) mol·L^(-1)浓度范围内呈现良好的线性关系,检出限分别为9.6×10^(-8) mol·L^(-1)和8.9×10^(-8) mol·L^(-1),可同时用于DA和Tyr的测定,结果满意。In this paper,a pre-anodized inlaying ultrathin carbon paste electrode was prepared on the basis of 316L stainless steel scraps(316L-PAIUCPE)with a simple and rapid method.The electrochemical response behavior of dopamine(DA)and tyrosine(Tyr)on this electrode was investigated,and the effect of acidity on the oxidation peak potential and peak current of DA and Tyr was discussed in detail Under the optimum conditions,the oxidation peak current was proportional to the DA and Tyr concentrations in the range of 8.0×10^(-7)~8.0×10^(-5) mol·L^(-1)and 6.0×10^(-7)~1.0×10^(-4)mol·L^(-1) with the detection limits of 9.6×10^(-8) mol·L^(-1) and 8.9×10^(-8)mol·L^(-1),respectively.The method applied to the determination of DA and Tyr with satisfactory results.

关 键 词：嵌入式预阳极化超薄碳糊电极 多巴胺 酪氨酸 

分 类 号：O657.1[理学—分析化学]