2008•Unpublished venueRequires access
Analysis of mixed agent of beta-cypermethrin and malathion by GC
Cuihua Zhang
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Abstract
Gas chromatography was used for the separation and determination of beta-cypermethrin and malathion in mixed agent. Dipentyl phthalate was selected as internal standard.Under the selected conditions,the retention times of malathion,internal standard and beta-cypermethrin were 8.273min,9.280min and 12.297min respectively. RSD’s(n=7)for beta-cypermethrin and malathion were found to be 0.99% and 1.23% respectively,and the average recoveries were 100.5% and 100.9% respectively. The linear correlation coefficients were 0.9997 and 0.9987 respectively.