Isolation and identification of impurities in technical quinalphos
1992
Sanyal, A. | Dureja, P.
A number of impurities developed in a sample of technical quinalphos on storage were isolated by column and thin-layer chromatography, and the structures of these impurities were determined by nuclear magnetic resonance, infrared, and mass spectroscopy. Non-phosphorus-containing impurities were not active whereas phosphorus containing impurities were as active as quinalphos against Tribolium castaneum Herbst.
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