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建立了同时检测水体中氰氟草酯·精噁唑禾草灵混剂的残留分析方法。结果表明,流动相为甲醇-水(体积比为75∶25),流速0.6mL/min,检测波长233nm,柱温30℃,进样量为20μL;氰氟草酯和精噁唑禾草灵的质量浓度分别在0.095～9.52mg/L和0.114～11.44mg/L范围内时,其质量浓度和峰面积的线性关系良好;样品添加质量浓度在0.01～0.50mg/L范围内,平均添加回收率分别为88.82%～93.04%和96.10%～97.06%。该方法简便,准确度、精密度好,可满足水体中氰氟草酯和精噁唑禾草灵残留量同时分析检测的需要。
A method was developed for the simultaneous determination of triptolide and fenoxaprop in water. The results showed that the mobile phase consisted of methanol-water (volume ratio of 75:25), the flow rate was 0.6 mL / min, the detection wavelength was 233 nm, the column temperature was 30 ℃ and the injection volume was 20 μL. Cyanoprofen and fenoxaprop The linear relationship between mass concentration and peak area was good when the mass concentration was in the range of 0.095 ~ 9.52mg / L and 0.114 ~ 11.44mg / L, respectively. The average concentration of the sample was 0.01 ~ 0.50mg / L, Rates were 88.82% ~ 93.04% and 96.10% ~ 97.06% respectively. The method is simple, accurate and precise, and can meet the needs of the simultaneous detection and detection of cyanofenoxate and fenoxaprop residue in water.