【摘要】 头孢哌酮钠在０．０５ｍｏｌ／ＬＨ２ＳＯ４溶液中，形成一良好的示波极谱导数峰。峰电位为－０．８２Ｖ（ｖｓ．ＳＣＥ）．峰电流与头孢哌酮钠的浓度在１．０×１０－７～２．０×１０－６ｍｏｌ／Ｌ范围内成线性关系。检出限为５．０×１０－８ｍｏｌ／Ｌ．回收率在９４．０％～１０２．０％之间。并用于尿样的测定，得到满意的结果。用线性扫描和循环伏安法等手段研究体系的伏安行为，特别是吸附性。实验表明，该体系属具有吸附性的不可逆过程。更多还原

【Abstract】 In 0.05mol/L H 2SO 4 solution, a sensitive reduction peak of cefoperazonium was obtained by single sweep oscillopolarography. The peak potential E p is -0.82V( vs .SCE). The peak current is directly proportional to the concentration of cefoperazonium over the range of 1.0×10 -7 ～2.0×10 -6 mol/L with the detection limit of 5.0×10 -8 mol/L. The method has been successfully applied to the determination of cefoperazonium in urine sample. The electrochemical behaviour of cefoperazonium was also studied by linear sweep and cyclic voltammetry. It has been shown that the wave is an irreversible adsorption wave.更多还原