DETERMINATION OF RESIDUES OF ENDOSULFAN AND ENDOSULFAN SULFATE ON EGGPLANT, MUSTARD AND CHICKPEA

Extractable residues of endosulfan stereoisomers and its toxic metabol ite, endosulfan sulfate, on a vegetable, an oilseed and a pulse crop w ere determined by gas-liquid chromatography. The study revealed that t he alpha isomer degraded faster than the beta isomer. Beta-endosulfan accumulated during the first three days following the treatment. Endos ulfan sulfate residues appeared a few days after application and decre ased with time. The total endosulfan residues in the seeds from treate d mustard ranged from 0.08 to 0.12 mg kg-1 and were at or below the li mit of determination (0.02 mg kg-1) in chickpea seeds following harves t.