Spectrophotometric Determination of Malathion (An Organo Phosphorous Insecticide) with Potassium Bromate
 
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Department of Chemistry, G.I.T, GITAM University, Rushikonda, Visakhapatanam-530045, A.P, India
Publish date: 2017-11-02
 
Eurasian J Anal Chem 2013;8(3):131–135
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ABSTRACT:
Malathion is an organophosphate insecticide. A simple spectrophotometric method for the determination of malathion is described. Malathion is decomposed by alkali to dimethyl dithiophosphate. The formed dimethyl dithiophosphate reacts with potassium bromate in presence of dilute nitric acid with the formation of orange-yellow color.The absorbance maximum was observed at 415 nm. The Beers law is obeyed up to 8 ppm for malathion standard solution. Water and vegetable samples were collected in different areas of Visakhapatnam district, Andhra Pradesh, India to determine the malathion and found low levels in the range up to 0.04 ppm.Interference study was carried for other pesticides and ions.
CORRESPONDING AUTHOR:
Nutulapati Venkata Satya Venugopal   
Department of Chemistry, G.I.T, GITAM University, Rushikonda, Visakhapatanam-530045, A.P, India
 
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