海南师范大学学报（自然科学版）2024，Vol.37Issue(3)：301-306,6.DOI:10.12051/j.issn.1674-4942.2024.03.005
基于多壁碳-Au/rGO纳米复合材料的生物传感器的制备及其在有机磷农药检测中的应用
Preparation of the Biosensor Based on Multi-wall Carbon-Au/rGO Nanocomposites and Its Application in the Detection of Organophosphorus Pesticides
摘要
Abstract
In this paper,the electrochemical properties of multi-walled carbon nanotubes(MWNTS)and gold composite re-duced graphene(Au/rGO)modified electrodes were investigated,and acetylcholinesterase was immobilized on the surface of modified electrodes by adsorption method to make biosensor,which was used for the detection of organophosphorus pesti-cides.The results showed that there was a linear relationship between the inhibition rate of phoxim and negative logarithm of phoxim concentration in the range of 1.0×10-6～1.0×10-11 mol/L,the linear equation was I=-0.611 0 lgc+1.222 01,the correlation coefficient and detection limit were 0.985 and 8.185×10-7 mol/L.Cyclic voltammetry(CV)and differential pulse voltammetry(DPV)were used to analyze and detect phoxim samples.The recoveries were 91.0%-110.0%.The sensor can be used to detect organophosphorus pesticide residues.关键词
多壁碳/Au/rGO/乙酰胆碱酯酶/传感器/有机磷农药Key words
multi-walled carbon/Au/rGO/acetylcholinesterase/sensor/organic phosphorus pesticide分类
化学化工引用本文复制引用
汪明畅,张钰桐,苗莎菻,王瑜,张晓萍..基于多壁碳-Au/rGO纳米复合材料的生物传感器的制备及其在有机磷农药检测中的应用[J].海南师范大学学报（自然科学版）,2024,37(3):301-306,6.基金项目
海南省自然科学基金高层次人才项目(220RC594) （220RC594）
