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Original Articles

ANALYSIS OF HETEROCYCLIC AMINES IN MAINSTREAM CIGARETTE SMOKE USING A NEW NCI GC-MS TECHNIQUE

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Pages 1749-1761 | Received 16 Feb 2001, Accepted 30 Apr 2001, Published online: 02 Feb 2007
 

Abstract

A new procedure for the analysis of heterocyclic amines (HAs) in cigarette mainstream smoke condensate was developed. The procedure is based on two step derivatization with heptafluorobutyric anhydride (HFBA) and N,N-dimethylformamide dimethyl acetal, followed by GC-MS analysis using negative chemical ionization (NCI) and single ion monitoring (SIM) detection. Using this procedure 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhiP) and 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) can be analyzed at levels as low as 0.5 ng/cig. Besides IQ and PhiP, the presence of six other HAs in particulate phase smoke was investigated. The technique is not sensitive enough for the analysis of 2-amino-9H-pyrido[2,3-b]indole (AαC), 2-amino-3-methyl-9H-pyrido[2,3-b]indole (MeAαC) and 3-amino-1, 4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1). The levels of 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2), 2-amino-6- methyldipyrido[1,2-α:3′2′-d]imidazole (Glu-P-1) and 2-amino- dipyrido[1,2-α:3′2′-d]imidazole (Glu-P-2) were below the estimated detection limit of the procedure.

Acknowledgments

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