Abstract
Abstract Nine chemists in five laboratories collaborated in testing the combined rapid ethyl acetate extraction and sweep co-distillation cleanup method for multiple organophosphate pesticide residues in crops. Pesticides were detected by GLC with the potassium thermionic detector. The six pesticides studied were Diazinon, methyl parathion, malathion, parathion, ethion, and carbophenothion. Six crops—kale, carrots, lettuce, apples, potatoes, and strawberries—were divided into three groups, and each laboratory was selected to work with a specific group. With unknown fortification levels of 1.0 and 0.5 ppm, the collaborators obtained recoveries of 90+% at each level.
Keywords
DiazinonEthionEthyl acetateChemistryMalathionPesticideChromatographyExtraction (chemistry)ParathionParathion methylToxicologyEnvironmental chemistryAgronomyBiology
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Publication Info
- Year
- 1968
- Type
- article
- Volume
- 51
- Issue
- 3
- Pages
- 662-665
- Citations
- 7
- Access
- Closed
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Cite This
R W Storherr,
Randall R Watts
(1968).
Collaborative Study of the Ethyl Acetate Extraction, Sweep Co-distillation Cleanup, and GLC Determination, Using Six Parent Organophosphate Pesticides.
Journal of AOAC INTERNATIONAL
, 51
(3)
, 662-665.
https://doi.org/10.1093/jaoac/51.3.662
Identifiers
- DOI
- 10.1093/jaoac/51.3.662