Abstract:A method for the determination of 13 N-nitrosamines in meat and aquatic products by gas chromatography-thermal energy analyzer with rapid steam distillation was established.The rapid steam distillation apparatus could extract the nitrosamines from samples with high efficiency.The stability and recovery of the method could be effectively improved by using N-nitrodiisopropylamine as internal standard.The results showed that the calibration curves had good linearity in the mass concentration range of 0-1.00 μg/mL with the correlation coefficients greater than 0.995.When the sampling amount was 200 g and the concentration volume was 1.0 mL，the detection limits of 13 nitrosamines were 0.05 μg/kg-0.18 μg/kg，the quantitative limits were 0.17 μg/kg-0.59 μg/kg，the recoveries were 80.1%-112.9%，and the relative standard deviations were 1.88%-7.16%.This method was applied to the detection of 16 real samples.It was found that N-dimethylnitrosamine was more detected in aquatic products，some of the samples even exceeded the national limit standard，and other N-nitrosamines were occasionally detected with relatively low content.