SPECTROPHOTOMETRIC ASSESSMENTS OF METHYL PARATHION IN WATER SAMPLES Page No: 581-587

MS Gaur, Amit Kumar Sharma, Pradeep Sharma, Vipin Mishra and Rajeev Kumar Tiwari

Keywords: Methyl parathion, hydrolysis, UV-VIS spectrophotometer, pH, temperature.

Abstract: A simple, sensitive and selective spectrophotometric method for the assessment of methyl parathion in water samples through various formulations is described. The method is based on the coupling of methyl parathion (MP) in alkaline conditions which gives the greenish yellow to lime yellow colored product having the maximum absorption at 395nm.The product is stable for 4 hours. The Beer’s limit in the concentration range of 0.1?g ml-1 to 1.5 ?g ml-1 has been observed. The molar absorptivity was found to be 0.047L mol-1 cm-1. The recovery of MP in distil water have been found to be less than tap water.



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