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Simultaneous determination of a mixture of organophosphorus and carbamate pesticides by high performance liquid chromatography

✍ Scribed by Sangita Thapar; Ravi Bhushan; R. P. Mathur

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
410 KB
Volume
8
Category
Article
ISSN
0269-3879

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✦ Synopsis

Abstract

A simple HPLC procedure has been developed for the simultaneous determination of a mixture of standard carbaryl, carbofuran, carbendazim, dimethoate, malathion and methyl parathion from a spiked agricultural soil sample. The pesticide mixture has been extracted using methanol–water. A concave gradient elution with acetonitrile–phosphate buffer for 15 min followed by linear elution for 5 min, using a wavelength of 224 nm for detection, has been found to resolve the mixture efficiently.

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An HPLC procedure has been developed to follow the decay of malathion and methylparathion under control conditions using an pBondapak Clll column with a mixture of acetonitrile and water as to mobile phase and an ultraviolet detector for detection. Studies have been conducted to monitor their degrad