Journal
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
Volume 368, Issue 6, Pages 616-623Publisher
SPRINGER
DOI: 10.1007/s002160000542
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Two methods for the analysis of ten organophosphorus insecticides in natural waters using solid phase extraction disks containing C-18 and SDB and solid phase microextraction fibers containing polyacrylate (PA) are developed. Bromophos ethyl, bromophos methyl, dichlofenthion, ethion, fenamiphos, fenitrothion, fenthion, malathion, parathion ethyl and parathion methyl were determined by GC/MS and GC/FTD. The SPE-disks require only 1000 mL, of sample and provide a method limit of detection in the range of 0.01-0.07 mug/L and recovery rates from 60.7 to 104.1%. The solid phase microextraction (SPME) technique requires 2-5 mL of water sample and provides a method limit of detection in the range of 0.01 to 0.05 mug/L for all detectors and the recoveries compared to distilled water ranged from 86.2 to 119.7%. The proposed methods were applied to the trace level screening determination of insecticides in river water samples originating from different Greek regions.
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