the following nitrosamines were quantitatively determined : n-nitrosodimethylamine , n-nitrosodiethylamine , n-nitrosopiperidine , n-nitrosopyrrolidine , n-nitrosoethylmethylamine , n-nitroso-ethyln-propylamine and n-nitroso-methyl-n-propylamine , n-nitroso-ethyl-n-propylamine and n-nitroso-methyl-n-propylamine .
C0028197
nitrosamines
C0027253
n-nitrosopyrrolidine