Development of method for determination of tebuconazole residue in banana

A procedure involving an extraction and cleaning up steps and further gas chromatographic analysis with NPD to determine residues of tebuconazole in banana is proposed.Residues of tebuconazole were extracted from banana with acetone,and cleaned up with petroleum ether by liquid-liquid partition.The methods are validated with fortified samples at different concentration levels(0.025~0.5mg·kg-1).Average recoveries ranged from 70.37% to 99.57% with relative standard deviations between 5.55% and 17.93%.Limit of detection is 0.01mg·kg-1.The proposed method can be considered as an appropriate method for monitoring tebuconazole in banana.