CHEMICAL STUDIES ON TOBACCO-SMOKE .63. FATE OF NICOTINE DURING PYROLYSIS AND IN A BURNING CIGARETTE

被引：46

作者：

SCHMELTZ, I ^{[1
]}

WENGER, A ^{[1
]}

HOFFMANN, D ^{[1
]}

TSO, TC ^{[1
]}

机构：

[1] USDA,ARS,BELTSVILLE,MD 20705

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1979年 / 27卷 / 03期

关键词：

D O I：

10.1021/jf60223a044

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Products obtained from the thermal degradation of [14C]nicotine in a combustion tube (under pyrolytic conditions) and in a cigarette (undergoing machine smoking) were examined by gas-liquid chromatography (GLC), by GLC-mass spectrometry, and by radiochromatography. Under pyrolytic conditions in a combustion tube, nicotine underwent extensive degradation to pyridines, quinolines, arylnitriles, and aromatic hydrocarbons. In contrast, in a burning cigarette, a substantial portion of nicotine remained intact (≈41%), 12.5% underwent oxidation to CO2, up to 11% was degraded to volatile pyridine bases, and negligible amounts were convertedto neutral or acidic particulate components. A major portion of nicotine and its degradation products was also diverted to sidestream smoke. These results suggest to us that pyrolysis experiments may be of limited value forestablishing the fate of nicotine and possibly other tobacco components in a burning cigarette. © 1979, American Chemical Society. All rights reserved.

引用

页码：602 / 608

页数：7

共 24 条

[1] CHEMICAL STUDIES ON TOBACCO-SMOKE .61. VOLATILE PYRIDINES - QUANTITATIVE-ANALYSIS IN MAINSTREAM AND SIDESTREAM SMOKE OF CIGARETTES AND CIGARS [J].