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首页> 外文会议>Proceedings of 4th international symposium on pesticides and environmental safety amp; 5th pan Pacific confernce on pesticide science amp; 8th international workshop on crop protection chemistry and regulatory harmonization >Degradation of Flumioxazin in Illuminated Water-sediment Systems
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Degradation of Flumioxazin in Illuminated Water-sediment Systems

机译：照明水沉淀系统中氟米沙星的降解

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@@ Flumioxazin, 2-[7-fluoro-3, 4-dihydro-3-oxo-4-(2propynyl)-2H-1, 4-benzoxazine-6-yl]-4,5 ,6,7tetrahydro-1H-isoindole-1,3-(2H)-dione, is a preemergence herbicide controlling a broad spectrum of weeds. In order to understand the behavior of photolabile flumioxazin in the aquatic environment, the aerobic aquatic metabolism study under illumination and in darkness was conducted using two different types of natural water-sediment systems and associate natural waters. 14C-Flumioxazin, separately labeled at 1-and 2-positions of the tetrahydrophthalimide moiety or uniformly at the phenyl ring, was applied to an overlying water at the rate equivalent to 600 g ai/ha by assuming uniform distribution in the water layer to a depth of 100 cm. Each test vessel was incubated at 20° C up to 30 days under illumination (λ>290 nm)，and the overlying water and associated sediment were separately analyzed to clarify the effects of illumination and bottom sediment on the dissipation of flumioxazin and the formation/decline of its degradates.
机译：@@氟米嗪，2- [7-氟-3，4-二氢-3-氧代-4-（2-丙炔基）-2H-1，4-苯并恶嗪-6-基] -4,5,6,7四氢-1H- isoindole-1,3-（2H）-dione是一种出苗前的除草剂，可控制多种杂草。为了了解光不稳定的氟米沙星在水生环境中的行为，使用两种不同类型的天然水-沉积物系统和相关的天然水在光照和黑暗条件下进行了有氧水生代谢研究。通过假定在水层中均匀分布到14C-氟虫嗪（分别在四氢邻苯二甲酰亚胺部分的1和2位上标记或在苯环上均匀地标记），以等于600 g ai / ha的比率施用于上层水。深度为100厘米。将每个测试容器在20°C的光照（λ> 290 nm）下孵育30天，并分别分析上方的水和相关沉积物，以阐明光照和底部沉积物对氟米沙星消散和地层/沉积物的影响。下降的退化。

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