DETERMINATION OF CYPERMETHRIN RESIDUES IN GINGKGO BILOBA LEAVES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
AbstractA simple and rapid method was described for the determination of cypermethrin in Ginkgo biloba leaves by high performance liquid chromatography (HPLC) with UV detection. A mixture of hexane and acetone (99:1) was used to extract the samples. After the sample cleanup was carried out with a mixture of petroleum ether and ethyl acetate (9:1) cypermethrin in the sample was analyzed using a Phenomenex Luna 5 micron second-generation silica column packed with Florisil and active carbon. The recovery of cypermethrin was 81.0 % and the relative standard deviation was 3.2 %.
KEY WORDS: Ginkgo biloba leaves, Cypermethrin, HPLC
Bull. Chem. Soc. Ethiop. 2009, 23(1), 97-100.