In this paper, the modified target factor analysis-UV spectrophotometry method is established for simultaneous determination of paraquat CL, cyanzine, metolachlor and atrazine in mixed herbicides.

• 摘要组分间存在交互作用的4种除草剂组成的混合样采用UV-目标因子分析法进行同时测定，结果相对误差较大。