Abstract:  In this paper we proposed a gas chromatographic method for the determination of trimethylamine in pork,fish and shrimp and disscussed the optimum conditions of quantitative analysis.The linear range between the peak area and the concentration of trimethylanine－N was 0－25μg/ml(γ=0.9999, n=6).The relative standard deviation was 3.1％－5.9％and the recovery was 95.0％－97.7％.This method was simple ,rapid and accurate.

Key words:  , Gas chromatography Trimethylamine Pig meat Fish Shrimp；