基于多壁碳纳米管/聚苯胺/离子液体复合物的对乙酰氨基酚电化学传感器  

Acetaminophen Electrochemical Sensor Based on Multi-Wall Carbon Nanotubes/Polyaniline/Ionic Liquid Complex

作　　者：秦建芳[1] 孙鸿[1] 姜秀平[1] 秦英恋 康婧 杨海英[1] QIN Jianfang;SUN Hong;JIANG Xiuping;QIN Yinglian;KANG Jing;YANG Haiying(Department of Chemistry Yuncheng University,Yuncheng044000)

机构地区：[1]运城学院应用化学系,山西运城044000

出　　处：《分析科学学报》2021年第5期670-674,共5页Journal of Analytical Science

基　　金：山西省应用基础研究计划青年项目(No.201901D211460);特色农产品发展学科群大学生创新创业训练(No.XK-201957);山西省省筹留学回国人员科研项目(No.2020-140);运城学院应用化学重点学科项目(No.XK-2019055,XK-201961,XK-201968);运城学院2019年度应用研究项目(CY-2019034)。

摘　　要：以多壁碳纳米管(MWCNTs)、离子液体(IL)及导电聚合物聚苯胺(PANI)为修饰剂,构建了MWCNTs/IL/PANI/Au复合电极,并实现了对乙酰氨基酚(ACOP)的测定。结果表明:ACOP浓度在6.98×10^(-6)~6.80×10^(-4)mol/L浓度范围内与峰电流呈良好的线性关系,检出限为2.35×10^(-6)mol/L。该电化学传感器重复性好、稳定性高、抗干扰性强。采用该方法对实际药品中ACOP含量进行测定,加标回收率为96.5%~100.6%。同时对催化机理进行了研究。An electrochemical sensor based on a Au electrode modified by multi-wall carbon nanotubes(MWCNTs)with good conductivity,ionic liquid(IL)with excellent catalytic properties and conductive polymer polyaniline(PANI)was applied for the detection of acetaminophen.Meanwhile,the catalytic mechanism was also studied.Under the optimal conditions,a good linear relationship was obtained for acetaminophen in a range of 6.98×10^(-6)-6.80×10^(-4)mol/L with a detection limit of 2.35×10^(-6)mol/L(S/N=3).Accordingly,reproducibility,stability and anti-interference tests were carried out.Furthermore,the designed sensor was successfully applied for the detection of acetaminophen in drug.The recoveries of acetaminophen were 96.5%-100.6%.This approach provides a new avenue for drug quality control.

关 键 词：MWCNTs/IL/PANI/Au 修饰电极 对乙酰氨基酚 催化机理 

分 类 号：O657.1[理学—分析化学]