Study on the extraction of organophosphorus insecticides from soil by supercritical fluid method
Journal
Analytical Sciences
Journal Volume
13
Journal Volume
13
Journal Issue
SUPPL.
Journal Issue
SUPPL.
Pages
137-140
Start Page
137
End Page
140
ISSN
09106340
Date Issued
1997
Author(s)
Abstract
Recovery of organophosphorus insecticides, quinalphos, chlorpyrifos and methidathion from soil were examined by extracting with carbon dioxide under supercritical state. Extraction conditions were designed at 100, 150, 200, 250 and 300 atm and under 40, 50 or 60°C. The better recovery was obtained by amending 2 ml of methanol into soil sample before extraction. The best extraction condition was found to be at 300 atm and under 50°C, at 200 atm and under 60°C, and at 100 atm and under 60°C for quinalphos, chlorpyrifos and methidathion, respectively.
Subjects
Organophosphorus insecticide
SFE
Soil
SDGs
Publisher
Japan Society for Analytical Chemistry
Type
journal article