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Confirming the presence of n-nitrosamines in ambient air and cigarette smoke by converting to and photochemically altering their corresponding n-nitroamines

Authors
Journal
Journal of Chromatography A
0021-9673
Publisher
Elsevier
Publication Date
Volume
213
Issue
2
Identifiers
DOI: 10.1016/s0021-9673(00)81908-1
Disciplines
  • Chemistry

Abstract

Abstract An analytical procedure for the detection of N-nitrosamines, which is one of the most sensitive available, has been expanded to make the technique more selective. This procedure involves oxidizing the nitrosamines to their corresponding nitroamines, with subsequent detection of picogram quantities by gas chromatography with an electron-capture detector. The presence of the nitroamines is then confirmed by photochemically altering them using a UV lamp and observing if the resulting decrease in peak height with time of irradiation obeys rate expressions derived by using reference nitroamines. The results of analyses of ambient air and cigarette smoke samples for the presence of nitrosamines are presented.

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