using a method involving extraction with artificial saliva , several nitrosamines including n-nitrosodi-n-butylamine ( ndba ) , n-nitrosodiethylamine ( ndea ) , n-nitrosodimethylamine ( ndma ) and n-nitrosomorpholine ( nmor ) were detected in addition to the three nitrosatable amines dibutylamine ( dba ) , diethylamine ( dea ) and dimethylamine ( dma ) .
C0028197
nitrosamines
C0012431
n-nitrosodimethylamine