茶质滤嘴降低卷烟烟气中亚硝胺的效果

为研究茶质滤嘴降低卷烟烟气中亚硝胺,利用气相色谱仪-热能检测器(TEA)分离检测卷烟烟气中NNN、NAT、NAB、NNK四种烟草特有亚硝胺(TSNAs)的含量。实验方法包括:卷烟烟气的捕集、二氯甲烷超声萃取剑桥滤片中TSNAs、萃取液经碱性氧化铝层析纯化,洗脱液的浓缩、纯化。检测结果表明:与普通滤嘴卷烟相比,烤烟型茶质滤嘴卷烟烟气中NNN、NAT、NAB、NNK、亚硝胺总量分别降低了16.88%、15.12%、26.04%、11.39%、14.61%;混合型茶质滤嘴卷烟烟气中NNN、NAT、NAB、NNK分别降低了23.04%、11.62%、17.41%、17.38%、17.41%。

Reducing Tobacco-specific Nitrosamines in Cigarette Mainstream Smoke by Using Tea Filter

In order to investigate the reduction of tobacco-specific nitrosamines (TSNAs) in tea filter cigarette mainstream smoke, TSNAs were detected by gas chromatography-thermal energy analyzer. The experimental procedure involved trapping mainstream with a Cambridge filter, extraction of TSNAs from the filter with dichloromethane, evaporating the dichloromethane and clean-up on a basic alumina chromatography column. The results showed that the contents of NNN, NAT, NAB, NNK and total TSNAs in tea filter flue-cured cigarette mainstream smoke were reduced by 16.88%, 15.12%, 26.04%, 11.39% and 14.61%, respectively. The contents of NNN, NAT, NAB, NNK and total TSNAs in tea filter blended cigarette mainstream smoke were reduced by 23.04%, 11.62%, 17.41%, 17.38% and 17.41%, respectively, compared with regular filter cigarette.