1. College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China; 2. College of Physical Science and Technology, Bohai University, Jinzhou 121013, China
Abstract: Multi-walled carbon nanotube/polymethyl red film modified electrode (MWCNTs/PMR-GCE) is prepared.The electrochemical behavior of tilmicosin on the modified electrode is studied by means of cyclic voltammetry (CV) and differential pulse voltammetry (DPV).The influences of modification amount,buffer system,the best pH value and scan speed on the detection effect of tilmicosin are also investigated.It is indicated by results that an irreversible oxidation peak of tilmicosin is observed on the modified electrode in citric acid-Na2HPO4 (pH=6) buffer solution.The oxidation peak current of tilmicosin shows a good linear relationship with its concentration in the range of 4.0×10-6 mol·L-1 to 1.0×10-4 mol·L-1,and the linear equation is:Ip=0.143 2C+6.973,r=0.995 8,and the detection limit is 6.0×10-7 mol·L-1.The prepared electrode has good stability and repeatability.It is shown that MWCNTs/PMR-GCE can be used to the electrochemical detection of tilmicosin.
秦洪伟, 刘妍, 赵薇, 尤国红. 替米考星的电化学检测研究[J]. 现代化工, 2022, 42(11): 245-248,255.
QIN Hong-wei, LIU Yan, ZHAO Wei, YOU Guo-hong. Study on electrochemical detection of tilmicosin. Modern Chemical Industry, 2022, 42(11): 245-248,255.
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