The role of lipids on the Sorption of non-ionic pesticides in soil environment
عنوان مقاله: The role of lipids on the Sorption of non-ionic pesticides in soil environment
شناسه ملی مقاله: NCCPRANRVM01_136
منتشر شده در اولین همایش ملی اصلاح الگوی مصرف با محوریت منابع طبیعی، کشاورزی و دامپزشکی در سال 1388
شناسه ملی مقاله: NCCPRANRVM01_136
منتشر شده در اولین همایش ملی اصلاح الگوی مصرف با محوریت منابع طبیعی، کشاورزی و دامپزشکی در سال 1388
مشخصات نویسندگان مقاله:
Ahmad Gholamalizadeh Ahangar - Department of Soil Science, College of Agriculture, University of Zabol, Zabol, Iran
خلاصه مقاله:
Ahmad Gholamalizadeh Ahangar - Department of Soil Science, College of Agriculture, University of Zabol, Zabol, Iran
Removal of soil lipids using accelerated solvent extraction (ASE) increased the sorption affinity of the remaining organic matter for both diuron and phenanthrene, by an average of 31% and 29%, respectively. Extractable lipids accounted for 3-13% of organic C. The organic carbon-normalized
sorption coefficients (KOC) for diuron and phenanthrene were consistently higher for the lipid-extracted soils than for the whole soils (average of 31% for diuron and 29% for phenanthrene), indicating that lipids compete for or block sorption sites on the organic matter. Sorption experiments on one pair of HF-treated soils indicated that the blocking effects of minerals and lipids are independent, since lipid extraction and HF-treatment combined increased KOC by more than either treatment alone.
کلمات کلیدی: sorption, phenanthrene, diuron, Lipid
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/88820/