Answers are grounded in this paper and cite their sources.
A simple, rapid and sensitive method has been developed for the determination of organophosphorus pesticides such as anthio, perfekthion and monocrotophos on the surface of plants. The method is based on the formation of molybdophosphoric acid in acidic solution followed by its reduction with the reducing agent malonyl dihydrazide to give a blue molybdenum complex which is extracted into butanol. The dye shows an absorption maximum at 780 nm. The molar absorptivity and Sandell's sensitivity are 3.55 ± 0.05 × 104 dm3 mol–1 cm–1 and 0.007 µg, respectively. The proposed method is free from interferences from Mo, Cu and Ni ions.
No takes yet. Share an insight, caveat, or question.
Chohan et al. (1992) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: