Abstract:

A gas chromatograph-mass spectrometric (GC-MS) method was proposed for the determination of bromopropylate residue in chicken meat and liver and pork live. The method was based on the sequential procedure consisting of homogenization for extraction with a mixture composed of cyclohexane and acetic ester (1:1), condensation, constant volume dilution, cleanup by gel permeation chromatography (GPC), GC-MS detection and quantification by the external standard method. The detection limit of the method was 5μg/kg. Spike recoveries for bromopropylate at the levels of 5, 10 μg/kg and 50μg/kg and relative standard deviations were 69.4%－104.6% and 9.3 %－11.9% in chicken meat, 74.4%－104.5% and 8.3%－10.8% in chicken liver and 74.6%－103.8% and 9.6%－11.1% in pork liver.

Key words: bromopropylate, chicken meat, chicken liver, pork liver, gel permeation chromatography, GC-MS