山东农业科学Issue(2)：119-124,6.
乙氧氟草醚在大蒜和土壤中的残留动态
Residue Dynamics of Oxyfluorfen in Garlic and Soil
王峰恩 1李瑞菊 1方丽萍 1李腾1
作者信息
- 1. 山东省农业科学院农业质量标准与检测技术研究所，山东 济南 250100
- 折叠
摘要
Abstract
To evaluate the environmental pollution and the food safety of applying oxyfluorfen in garlic production , the residue and digestion dynamics of oxyfluorfen in garlic and soil were studied by field experi-ment.The samples were extracted by acetone/ethyl acetate , heated by microwave , purified by Florsil column , and then analyzed by gas chromatograph -mass spectrometer ( GC-MS) .The results showed that the linear relationship of oxyfluorfen in the range of 0 .01 ~1 .0 mg/L was good with the correlation coefficient of 0 .9980 .The fortified recovery in garlic , plants and soil ranged from 85 .2% to 104 .1% with the relative standard deviation (RSD) of 1.8%~9.6%.The residual quantity in garlic plants was too low to observe the digestion dynamic .Whereas , the digestion dynamic in soil was clear .The half-life period was 15 .4~18 .6 days, and the residue was digested more than 90%on the 42th day after application.Spraying 30%oxyfluor-fen and prometryn WP at the dosage of 900 g a.i./hm2 and 1 350 g a.i./hm2 respectively, the residual quan-tities of oxyfluorfen in garlic and garlic sprout were both less than the limit of detection ( LOD) of 0.01 mg/kg, and the maximum residue level (MRL) in Japan and Iarael of 0.05 mg/kg.In conclusion, to control weeds in garlic field, spraying 30%oxyfluorfen and prometryn WP at the dosage of 450~900 g a.i./hm2 be-fore seed germination , the products were safe .关键词
乙氧氟草醚/大蒜/土壤/残留消解动态/气相色谱-质谱联用Key words
Oxyfluorfen/Garlic/Soil/Residue and digestion dynamics/Gas chromatograph -mass spectrometer分类
化学化工引用本文复制引用
王峰恩,李瑞菊,方丽萍,李腾..乙氧氟草醚在大蒜和土壤中的残留动态[J].山东农业科学,2014,(2):119-124,6.
