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Study on Photolytic Characters of Penoxsulam Photolysis
Pages: 23-25
Year: Issue:  7
Journal: Environmental Science and Management

Keyword:  五氟磺草胺光解液相色谱;
Abstract: 通过室内模拟的试验方法研究了五氟磺草胺在高压汞灯下的光解特性.五氟磺草胺在pH5、7、9的缓冲溶液中光解半衰期分别为23 min、20.6 min、18.7 min,随着pH的升高光解速率加快.在五氟磺草胺浓度为1 mg/kg、2 mg/kg、5 mg/kg的水溶液中半衰期分别为14.2 min、17.5 min、22.1 min,光解速率随着浓度的升高而减慢.在1 g/L、2 g/L的腐殖酸溶液中五氟磺草胺的半衰期分别为6.6 min、4.6 min,其光解速度是水中的4~5倍.五氟磺草胺在0.1 g/L的UV531溶液中半衰期为27.8 min,在0.2 g/L的溶液中半衰期为35.8 min,半衰期比在水溶液中延长60%.
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