Gas liquid chromatography-flame ionization detector (GLC-FID) residue analysis of carbamate pesticide in freshwater fish Labeo rohita

Abstract

In this present study, the identification and quantification of carbosulfan pesticide residues in freshwater fish Labeo rohita is developed. A gas liquid chromatographic (GLC) method was successfully developed for the determination of carbosulfan residues. The fish were exposed to 1/10^th sublethal concentration of carbosulfan i.e. 0.12 mg L⁻¹ for 15 days. The fish samples were extracted with n-hexane, cleaned up and purified. The order of tissues where the carbosulfan pesticide bioaccumulation takes place were in the order: gill < kidney < liver < muscle. These results suggest that prolonged exposure to sublethal concentrations of carbosulfan in Labeo rohita leads to increased accumulation of pesticide residues in tissues.