Abstract
Adsorption of 4-methylnitrosamino-1-3-pyridyl-1-butanone (NNK) along with N’-nitrosonornicotine (NNN) in water is studied for the first time with the monitoring of LC-MS/MS. In the mixed aqueous solution of NNK and NNN, NaZSM-5 zeolite uniquely captured NNK but refused NNN. And the influence of initial concentration, adsorption time and type of sorbents were systemically investigated. Degradation of NNK adsorbed on zeolite is studied with TG/MS and FTIR methods for the first time. It was degraded to NO, pyridine, amine and propanal at around 600 K, avoiding formation of volatile nitrosamines and secondary pollution.
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