[Determination of N-nitrosamines in food products intended for long term storage].

The content of carcinogenous N-nitrosoamines (N-nitrosodimethylamine, N-nitrosodiethylamine, N-nitrosopiperidine) was determined fluorimetrically (as NBD-amines) in preserved products, food concentrates, dried fruit and mushrooms. No N-nitrosoamines were found in the concentrates and dried products. The content of N-nitrosamines did not exceed 3 g/kg. In some samples its content reached 19 microgram/kg.