Consistency of Rst values of six organophosphorus pesticides resolved by thin-layer chromatography in the presence of plant extracts without elaborate clean-up

Abstract

This paper reports statistical analyses of the ratio of the distance travelled by each of five organophosphorus pesticides to that travelled by parathion in the presence of plant extracts, without elaborate clean-up. Mixtures of azinphos-methyl, carbophenothion, diazinon, ethion, malathion and mevinphos in the presence of apple, beet, carrot, lettuce or pea extracts were evaluated with reference to the parathion internal standard.