农药学学报2017，Vol.19Issue(5)：583-588,6.DOI:10.16801/j.issn.1008-7303.2017.0077
丙炔氟草胺的水解及光解特性研究
Study on the photolytic and hydrolytic properties of flumioxazin
程功 1田宏哲 1刘娜 1朱赫 1SHAFI Jamil 1纪明山1
作者信息
- 1. 沈阳农业大学植物保护学院,沈阳 110866
- 折叠
摘要
Abstract
In order to study the chemical behavior of flumioxazin. The photolytic and hydrolytic properties of flumioxazin under different conditions were investigated using the indoor simulation test method. The results showed that the hydrolysis half-life of flumioxazin was 63.00, 33.00 and 28.50 h in the buffer solutions with the initial concentration of 2 mg/L at pH, 5, 7 and 9, respectively. The degradation was much faster in alkaline solutions than in the neutral and acidic solutions. The hydrolysis half-lives of flumioxazin was 33.00, 23.10 and 8.88 h in the buffer solutions with the initial concentration of 2 mg/L at pH 7, 15, 25 and 35℃. The higher the temperature, the faster the hydrolysis rate. The hydrolysis rate of fulmioxazin in river water was higher than that in tap water and distilled water. Under the irradiation of 300 W mercury lamp, the photolysis rate of flumioxazin was higher than that under the acidic and neutral conditions. The photolytic rates of flumioxazin in different organic solvents showed the following sequence: methanol > ethyl acetate >N-hexane > acetonitrile > acetone. The photolysis rate under different light sources followed the sequence: 500 W mercury lamp > 300 W mercury lamp > xenon lamp. The results provided a scientific basic for environmental risk assessment of flumioxazin.关键词
丙炔氟草胺/水解/光解/半衰期Key words
flumioxazin/hydrolysis/photolysis/half-life分类
资源环境引用本文复制引用
程功,田宏哲,刘娜,朱赫,SHAFI Jamil,纪明山..丙炔氟草胺的水解及光解特性研究[J].农药学学报,2017,19(5):583-588,6.
