A method was introduced for the determination of metsulfuron-methyl and acetochlor in its mixture by HPLC on CLC-CN chromatographic column and UV detector(225nm) with methanol-water-acetic acid(550:449:1) as mobile phase.

• 本文应用CLC－CN色谱柱，UV225纳米检测波长，甲醇：水：冰乙酸（550：449：1，体积比）流动相的液相色谱外标法，测定混合制剂中乙草胺和甲黄隆含量。