纺织高校基础科学学报2011，Vol.24Issue(3)：406-412,7.
对乙酰氨基酚在n-丁基吡啶六氟磷酸盐修饰碳糊电极上的灵敏测定
Sensitive voltammetric determination of paracetamol based on ionic liquid n-butyl pyridinium hexafluophosphate modified carbon paste electrode
摘要
Abstract
A carbon ionic liquid electrode (CILE),which was fabricated by mixing hydrophobic room temperature ionic liquid,n-butyl pyridinium hexafluophosphate ( [ BuPy ] [ PF6 ] ),with graphite powder,was used to investigate the electrochemical behaviors of paracetamol in 0.1 mol/L acetate buffer solution ( pH 4.7 ) by cyclic voltammetry (CV),square wave voltammetry (SWV) and chronocoulometry.The peak-to-peak potential separation (△Ep,) of paracetamol was 0.088 V with scan rate of 0.1 V/s.The results showed that CILE exhibited better electrocatalysis for redox of paracetamol.Diffusion coefficient (D) was calculated as 1.214 × 10-7 cm2/s.The oxidation peak current versus concentration of paracetamol at CILE showed linearity in the range of 0.5-10.0 μmol/L (r =0.998 8) with a detection limit of 0.01 μmot/L ( S/N = 3).The proposed method was applied to determination of paracetamol in tablets and urine samples successfully.In addition,CILE was inexpensive,stable,repeatable and easy to be fabricated.关键词
伏安法/电催化/碳离子液体电极/对乙酰氨基酚Key words
voltammetry/ electrocatalysis/ carbon ionic liquid electrode/ paracetamol分类
化学化工引用本文复制引用
娄广信,张建福,上官小东,肖雪红,党韶丽..对乙酰氨基酚在n-丁基吡啶六氟磷酸盐修饰碳糊电极上的灵敏测定[J].纺织高校基础科学学报,2011,24(3):406-412,7.基金项目
Supported by the Science Foundation of Baoji Vocational Technology College (20100013) （20100013）
