a survey to determine the extent of the nitrosamine contamination of some popular fermented nigerian beverages by dimethyl- and diethylnitrosamine has been carried out in the lagos , ogun , oyo , ondo , kwara and benue states of nigeria , following the mass spectrometric detection of these carcinogens in palm wine and nono ( sour milk ) .
C0028197
nitrosamine
C0012200
diethylnitrosamine