氯霉素在聚茜素红薄膜修饰电极上的伏安行为及其测定  

Voltammetric Behavior of ChloramphenicolatPoly (Alizarin Red) Film Modified Electrode and Its Determination

作　　者：曾庆慧[1] 肖什文[2] 

机构地区：[1]中国地质大学材料科学与化学工程学院,武汉430074 [2]湖南文理学院化学化工系,常德415000

出　　处：《安徽化工》2005年第1期33-35,共3页Anhui Chemical Industry

摘　　要：研究了聚茜素红薄膜修饰电极(PARE)对氯霉素(Chloramphenicol,CAP)的电催化作用,并应用于对微量CAP的定量检测.实验结果表明:在0.010mol/L HCl+1.0×10-4mol/L Cu2++0.10mol/L NaCl测定体系中,CAP的浓度在1.0×10-9mol/L～1.0×10-8mol/L范围内与它的氧化峰电流呈良好的线性关系,线性方程和线性相关系数分别为:ip(μA)=-0.188×10-8CCAP(mol/L)-7.62,γ=0.9997,检出限可达5.0×10-10mol/L.CAP的标准回收率为95.9%～102.9%,八次平行样品测定结果的相对标准偏差3.2%.This paper reports a quantitative analysis for determination of trace chloramphenicol(CAP)using the Poly (Alizarin Red) film modified electrode (PARSE). In the medium of 0.010mol/L HCl+1.0×10-4mol/L Cu2++0.10mol/L NaCl solution, the PARSE was utilized for determination of CAP by voltammetry. The oxidation currents were linear for CAP in the range of 1.0×10-9mol/L(1.0×10-8mol/L, and the detection limit was calculated to be 5×10-10 mol/L .The corresponding linear regression equation is ip(霢)=-0.188 a correlation coefficient of . The standard recovery of CAP is 95.9%~102.9%.

关 键 词：氯霉素 聚茜素红薄膜 修饰电极 伏安行为 测定方法 细菌 食物 

分 类 号：TS202.3[轻工技术与工程—食品科学] TS201.2[轻工技术与工程—食品科学与工程]