变色酸2R修饰玻碳电极检测对乙酰氨基酚  

Detection of acetaminophen with chromotropic acid 2R modified glassy carbon electrode

作　　者：张苗 胡梁斌[1] 李晓波[2] ZHANG Miao;HU Liangbin;LI Xiaobo(School of Food Science,Henan Institute of Science and Technology,Xinxiang 453003,China;School of Chemistry and Chemical Engineering,Henan Institute of Science and Technology,Xinxiang 453003,China)

机构地区：[1]河南科技学院食品学院,河南新乡453003 [2]河南科技学院化学化工学院,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2019年第4期47-52,共6页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省高校科技创新人才(18HASTIT037);河南省科技攻关项目(182102110446)

摘　　要：采用电化学聚合法将变色酸2R聚合物修饰到玻碳电极上,制备了P2R/AGCE修饰电极,检测了P2R/AGCE修饰电极的电化学特性和P2R/AGCE修饰电极对对乙酰氨基酚药物的电催化性能.结果表明:变色酸2R增大了电极的比表面积,显著改善了玻碳电极的电化学性能,提高了电极的导电性.P2R/AGCE修饰电极的灵敏度高、检出限低、电催化能力强、重现性好.在最佳测试条件下,氧化峰峰电流与对乙酰氨基酚浓度在0.01~0.20mol/L间存在良好的线性关系,检出限8.273×10-9mol/L(S/N=3∶1).在同样的最佳测试条件下,检测了实际样品中的对乙酰氨基酚含量,其回收率为95.0%~98.8%.In this paper,chromotropic acid 2R was modified on glassy carbon electrode as polymer.The electrochemical performance and the electrocatalytic properties of P2R/AGCE for acetaminophen were tested.The results showed that chromotropic acid 2R enlarged the specific surface area of the electrode,improved the electrochemical performance and conductivity of the glassy carbon electrode.P2R/AGCE had high sensitivity,strong electrocatalytic ability and good reproducibility.Under the optimum conditions,the peak current of oxidation had a good linear relationship with the concentration of acetaminophen in the range of 0.01 mol/L to 0.20 mol/L.The detection limit is 8.273×10-9 mol/L (S/N=3∶1).The content of acetaminophen in real samples was determined with the recovery of 95%~98.8%.

关 键 词：变色酸2R 修饰电极 对乙酰氨基酚 

分 类 号：O646.54[理学—物理化学]