自发现表面活性剂具有“胶束增溶”作用、可大大提高多元络合物光度法的分析灵敏度后,表面活性剂用于多元络合物的光度测定便日趋增多。本实验较系统地研究和制定了以偶氮氯磷—mA(CPA—mA)为显色剂、二苯胍(DPG)为协同增色剂(第二配位体)、溴化十六烷基吡啶(CPB)为胶束增溶表面活性剂,在一定条件下与铈组 Since the surfactant is found to have a “micellar solubilization” effect, the analytical sensitivity of the multi-complex photometry can be greatly enhanced, and the photometric determination of the multi-complex with the surfactant increases. In this experiment, we systematically researched and developed a new method to synthesize CPA-mA with chromogenic reagent (DPA) as synergist (second ligand), cetyl bromide Pyridine (CPB) is a micellar solubilizing surfactant under certain conditions with cerium