1.1 This standard prescribes the gas chromato-graphic method for determination of synthetic pyrethroids, namely, cypermethrin, deltamethrin, fervalerate and permethrin residues in various food commodities.
1.1.1 This method is applicable with a limit of detection in the range of 0.005 — 0.05 μg/g ( 0.005 — 0 05 ppm ).
1.1.2 Though no set procedure for thin layer chromatography ( TLC) is being prescribed, standardized TLC may be followed, if necessary, for the purpose of identification and confirmation of residues.
IS 12616-1989 history
1989IS 12616-1989 Pesticide residues in food - cypermethrin, deltamethrin, fenvalerate and permethrin - Determination methods