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南京农业大学植物保护学院近期在甲萘威在液相中的光化学降解研究中取得新进展。科研人员以高压汞灯为光源,研究了甲萘威在液相中的光化学降解及影响因素。结果表明:甲萘威在不同溶剂中的光解均符合一级动力学方程。甲萘威的光解速率随初始浓度的增加而减小。在不同有机溶剂中的光解速率大小依次为正己烷>甲醇>乙腈,在碱性溶液中比中性和酸性溶液中光解
Nanjing Agricultural University, Institute of Plant Protection in the recent carbaryl in the liquid phase of photochemical degradation made new progress. Researchers to high-pressure mercury lamp as a light source to study carbaryl in the photochemical degradation of liquid and its influencing factors. The results showed that the photodegradation of carbaryl in different solvents all accord with the first-order kinetic equation. Carbaryl photolysis rate decreases with increasing initial concentration. The photodegradation rates in different organic solvents were in order of n-hexane> methanol> acetonitrile, and photolysis in alkaline solutions than in neutral and acidic solutions