氯菊酯在沙土表面的光降解

doi:10.3969/j.issn.1000-1565.2014.02.009

摘要/Abstract

摘要： 为了研究氯菊酯在土壤中的光降解规律,更好地为其在自然环境中的光降解提供理论依据,以沙土做基质,通过控制几个典型的环境因素,探讨氯菊酯在沙土表面光降解的规律.并利用气相色谱-质谱联用仪对降解中间产物进行分析,以便探讨氯菊酯在沙土中可能的降解过程.根据实际情况,主要选择了以下几种影响因素进行研究:样品与光源的距离、氯菊酯含量、沙土厚度、光源类型、pH及含水量、腐殖酸和几种土壤中常见的无机盐含量.结果表明:靠近光源,减少厚度,使用紫外光源和添加含铁无机盐均有利于氯菊酯在土壤表面降解.

关键词: 氯菊酯, 光降解, 影响因素, 沙土

Key words: permethrin, photodegradation, influence factors, sand

中图分类号:

刘芃岩,田磊,陈艳杰. 氯菊酯在沙土表面的光降解[J]. 河北大学学报(自然科学版), 2014, 34(2): 160-165.

LIU Pengyan,TIAN Lei,CHEN Yanjie. Photodegradation of permethrin on the sand surface[J]. Journal of Hebei University (Natural Science Edition), 2014, 34(2): 160-165.

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