Assessment of carcinogenic volatile N-nitrosamines in tobacco and in mainstream and sidestream smoke from cigarettes

阅读量:

35

作者:

KD BrunnemannL, YuD, Hoffmann

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摘要:

Volatile -nitrosamines were quantitatively determined in tobacco and fresh cigarette mainstream and sidestream smoke with a thermal energy analyzer. The smoke was trapped in ascorbic acid solution buffered at pH 4.5 and then extracted with dichloromethane; the organic phase was chromatographed on basic alumina and analyzed by gas-liquid chromatography with a thermal energy analyzer (sensitivity, 50 pg/injection). For positive identification the volatile nitrosamines were further enriched by distillation and chromatography and then identified by gas-liquid chromatography and mass spectrometry.

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被引量:

185

年份:

1977

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