• 中文
    • English
  • English 
    • 中文
    • English
  • Login
View Item 
  •   DSpace Home
  • 海洋与地球学院
  • 海洋环境-已发表论文
  • View Item
  •   DSpace Home
  • 海洋与地球学院
  • 海洋环境-已发表论文
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Degradation kinetics and products of triazophos in intertidal sediment

Thumbnail
Full Text
Degradation kinetics and products of triazophos in intertidal sediment.htm (402bytes)
Date
2005
Author
Lin, KD
Yuan, DX
袁东星
Collections
  • 海洋环境-已发表论文 [5278]
Show full item record
Abstract
This work presents laboratory studies on the degradation of triazophos in intertidal sediment. The overall degradations were found to follow the first-order decay model. After being incubated for 6 d, the percentage of degradations of triazophos in unsterilized and sterilized sediments were 94.5% and 20.5%, respectively. Between the temperatures of 15 degrees C and 35 degrees C, the observed degradation rate constant(k(obsd)) enhanced as the incubation temperature increased. Triazophos in sediment degraded faster under aerobic condition than under anaerobic one. The water content of sediment had little influence on the degradation when it was in the range of 50%-100%. The values of k(obsd) decreased with increasing initial concentration of triazophos in sediment, which could result from the microorganism inhibition by triazophos. Four major degradation products, o, o-diethyl phosphorothioic acid, monoethyl phosphorothioic acid, phosphorothioic acid, and 1-phenyl-3-hydroxy-1, 2, 4-triazole, were tentatively identified as their corresponding trimethylsilyl derivatives with a gas chromatography-mass spectrometer. The possible degradation pathway of triazophos in intertidal sediment was proposed. The results revealed that triazophos in intertidal sediment was relatively unstable and could be easily degraded.
Citation
JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2005,17(6):933-936
URI
https://dspace.xmu.edu.cn/handle/2288/10040

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies