The optimal conditions for the determination of the concentration of the hydrolyzed polyacrylamine in the waste from oil extraction by the starch - cadmium iodide spectrophotometry were investigated and the reaction mechanism was explored 摘要研究了淀粉碘化镉光度法检测油田采出液中部分水解聚丙烯醯胺浓度的最佳测试条件,并探讨了反应机理。