应用化学2012，Vol.29Issue(7)：824-829,6.DOI:10.3724/SP.J.1095.2012.00350
石墨烯修饰电极的制备及其对对乙酰氨基酚的伏安测定
Preparation of Graphene-modified Electrode and Voltammetric Determination of Acetaminophen
摘要
Abstract
A glassy carbon electrode was modified with graphene by casting. The modified electrode showed an excellent electrocatalytical effect on the oxidation of acetaminophen (ACOP). The voltammetric behavior and electrochemical analysis method of ACOP were studied on the modified electrode. The effect of pH value on the response of ACOP was studied in phosphate buffer solution (PBS). The results showed that the redox peak potential of ACOP shifted negatively with increasing pH value, and a pair of well-defined redox waves were obtained in PBS of pH = 6.0. The oxidation peak currents of ACOP increased linearly with the concentration, in the range of 6.00 × 10-7 -4.00 × 10-5 mol/L, the linear regression equation was ips(A) =3.00c+ 1.21 × 10-5 with correlation coefficient 0.9940. The detection limit (S/N = 3) was 5. 00 × 10-8 mol/L. The graphene modified electrode showed a good sensitivity, selectivity and stability. It was applied to the ACOP tablets analysis.关键词
化学修饰电极/石墨烯/对乙酰氨基酚Key words
chemically modified electrode, graphene, acetaminophen分类
化学化工引用本文复制引用
马心英,吴义芳,李霞..石墨烯修饰电极的制备及其对对乙酰氨基酚的伏安测定[J].应用化学,2012,29(7):824-829,6.基金项目
山东省高等学校科技计划项目(J10LB64),山东省自然科学基金资助项目(2R2009BM003) （J10LB64）
