【摘要】 本文考察了磺胺二甲嘧啶在多种底液中的极谱伏安行为，发现其在ＢｒｉｔｏｎＲｏｂｉｎｓｏｎ（ＢＲ）缓冲溶液（ｐＨ２．２）中产生一个良好的还原峰，峰电位为－０．８５Ｖ（ｖｓ．ＳＣＥ），峰电流与磺胺二甲嘧啶浓度在１×１０－７３×１０－４ｍｏｌ／Ｌ范围内呈良好的线性关系，检出限为９×１０－８ｍｏｌ／Ｌ，大多数金属离子和无机阴离子不干扰测定，可望用于定量测定用多种电化学方法研究了该还原峰电流的性质，结果表明，它是具有吸附性质的不可逆还原峰更多还原

【Abstract】 The polarographic and voltammetric behaviour of sulfadimidinum were studied by various electrochemical methods. In Britton Robinson buffer, a well defined linear sweep voltammetric peak at static mercury drop electrode appears with the compound. The peak potential is about -0.85V(vs.SCE). The peak current is directly proportional to the concentration of sulfadiminum over the range of 1.0×10 -7 ￣3.0×10 -4 mol/L. The limit of detection is 9×10 -8 mol/L. The experimental results indicate that the peak has the characteristics of adsorption.更多还原