Abstract:

A method for the determination of carbofuran and carbaryl in fruit and vegetable juice was established by high performance liquid chromatography (HPLC). The samples were extracted with the mixture of methanol and dichloromethane (1:99, V/V). After cleanup with amino column and concentration to constant volume, the carbofuran and carbaryl extracted into the organic phase was analyzed quantificationally by external standard method. The results showed that the detection limits of the two pesticides were 0.002 mg/kg and 0.0008 mg/kg, and their average spike recoveries range from 77.1% to 94.5% with the relative satandard deviation of 1.3% to 9.0%.

Key words: HPLC, fruit and vegetable juice, carbofuran, carbaryl