F E Hearth

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Rapid screening for parathion above 0.5 p.p.m. in canned peaches is possible by thin-layer chromatography including a selected colorimetric spray detection system which does not respond to the natural components in the substrate. Approximately one hour is required from spotting of plate to interpretation of results.
CONCLUSIONS The present preliminary report clearly justifies more detailed examinations of this previously unreported oxidative technique. AgO may prove to be a general reagent for oxidizing thiono-organophosphorus pesticides to their phosphates which are often more potent ChE inhibitors than the parent compounds; many other oxidants have been utilized for(More)
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