Simultaneous Determination of Multi-components in Mixed-herbicides by Target Factor Analysis-UV Spectrophotometry

The target factor analysis-UV spectrophotometry method is established for simultaneous determination of cyanazine, metolachlor and atrazine in mixed herbicides. The experimental results show that the recovery of each herbicide is satisfying. The recovery of cyanazine ranges from 99.30% to 101.60%, metolachlor from 97.97% to 101.36% and atrazine from 97.30% to 101.50%, with standard deviation of three components 1.06%,1.49%,0.59%,respectively. In all, the target factor analysis method can determine accurately mixed herbicides.