| 除草剂乙草胺、异丙甲草胺的光降解及其致突变性 |
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| 引用本文： | 王琪全,刘维屏.除草剂乙草胺、异丙甲草胺的光降解及其致突变性[J].中国环境科学,1999,19(1):0-0. |
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| 作者姓名： | 王琪全 刘维屏 |
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| 作者单位： | 浙江大学化学系环境与资源化学研究所 浙江杭州 310027 |
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| 摘 要： | 对两种常见的酰胺类除草剂乙草胺、异丙甲草胺的光降解进行了研究，采用Ames试验方法对母体及其光降解产物的致突变性进行了检验．结果表明，初始ｐＨ值的变化对这两种除草剂的光降解速率无明显影响，异丙甲草胺比乙草胺更易于发生光降解．乙草胺在光降解前后均表现出无致突变性；异丙甲草胺本身具有致突变性，在光降解过程中未表现出有其它致突变性物质产生．
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| 关 键 词： | 乙草胺 异丙甲草胺 光降解 致突变性 Ames试验 |
| 文章编号： | 1000-6923(1999)01-0001-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 1998-06-24 |
The photodegradation of acetochlor and metolachlor and their mutagenicity |
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| WANG Qi-quan,LIU Wei-ping.The photodegradation of acetochlor and metolachlor and their mutagenicity[J].China Environmental Science,1999,19(1):0-0. |
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| Authors: | WANG Qi-quan LIU Wei-ping |
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| Institution: | WANG Qi-quan, LIU Wei-ping
(Environmental and Resource Chemistry Institute,Department of;
Chemistry,Zhejiang University, Hangzhou 310027,China). |
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| Abstract: | The photodegradation of
acetochlor and metolachlor was studied. The mutagenicity of photodegradation pro ducts were
determined by Ames test. The results showed that the change of original pH performed no
significant influence on the photodegradation rate of these two herbicides. Metolachlor was
easier to be photodegradated than acetochlor. Aceto chlor and its photodegradation products
existed no mutagenicity, while metolachlor showed mutagenicity. It seemed that there was no
other mutagenic substance generated during the photodegradation of metolachlor. |
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| Keywords: | acetochlor metolachlor photodegradation mutagenicity Ames test |
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