期刊文献+

光合细菌对氯氰菊酯的降解作用 被引量:5

Effects of Photosynthesis Bacteria on Cypermethrin Degradation
下载PDF
导出
摘要 采用气相色谱法研究光合细菌对氯氰菊酯的降解作用。结果表明,氯氰菊酯的浓度为0.1μg/mL时,光合细菌对其降解率在8 h1、8 h和36 h时分别达到62.1%、83.4%、91.8%,液体中的氯氰菊酯被快速富集于光合细菌菌体内;在10 h时,光合细菌体内氯氰菊酯含量最高达0.062μg/mL。随着光合细菌的生长代谢,菌体内的氯氰菊酯逐渐被降解。30 h时,菌体内的氯氰菊酯浓度降低至0.017μg/mL,120 h后被完全降解消除。 To study the effect and mechanism of cypermethrin degradation by photosynthesis bacteria (PSB), gas chromatography was used to determine the degradation of cypermethrin by PSB. The results showed that the cypermethrin was quickly degraded by PSB, and degradation rate was 62.1%, 83.4%, 91.8% after 8 h, 18 h, 36 h respectively, while initial concentration of cypermethrin was 0.1 μg/mL, and cypermethrin in environment was accumulated into PSB in vivo rapidly, and the cypermethrin concentration of photosynthesis bacteria in vivo was highest with 0. 062μg/mL after 10 h. With the metabolism of PSB, cypermethrin concentration decreased rapidly, and its concentration reached 0. 017μg/mL after 30 h. Cypermethrin was completely degraded by PSB after 120 h. In conclusion, PSB can degrade cypermethrin rapidly by its metabolism .
机构地区 西南大学药学院
出处 《四川农业大学学报》 CSCD 北大核心 2009年第4期471-474,共4页 Journal of Sichuan Agricultural University
基金 重庆市科委科技攻关计划项目课题(CSTC 2007AC1052)
关键词 气相色谱 光合细菌 氯氰菊酯 降解 gas chromatography photosynthesis bacteria cypermethrin degradation
  • 相关文献

参考文献16

二级参考文献138

共引文献213

同被引文献82

引证文献5

二级引证文献15

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部