卷烟侧流烟气焦油、烟碱的测定方法研究

采用根据CORESTA推荐的分析卷烟侧流烟气的方法和原理研制的鱼尾罩侧流烟气捕集装置 ,结合气相色谱 (GC)与紫外光谱 (UV)分析技术 ,对卷烟侧流烟气焦油、烟碱的测定方法进行了研究。共进行了两组重复实验 ,并与同一时期日本烟草公司测定的侧流烟气焦油和烟碱的分析结果进行了比较。结果发现 ,实验采用的侧流烟气焦油、烟碱的测定方法具有很好的重复性 ,所有测试项目如抽吸口数、滤片和鱼尾罩上的焦油、烟碱等的变异系数都在 10 %以下 ,侧流烟气总焦油和总烟碱的变异系数都小于 5 % ,且与日本烟草公司的测试结果非常接近 ,说明该方法适用于侧流烟气焦油和烟碱的测定。同时 ,还对卷烟侧流烟气的捕集原则、侧流烟气的测试条件选择等进行了讨论。

Studies on Method for Analysing Tar and Nicotine in Sidestream Smoke of Cigarette

Studies on method of analysing tar and nicotine in sidestream smoke was conducted using a modified smoking machine equipped with fishtail chimney designed according to the CORESTA recommended method for trapping sidestream smoke, and associating with GC and UV. Two groups of experiments were conducted to evaluate repeatability of the method. The data on sidestream smoke were compared with those obtained by Japanese Tobacco Corporation (JT) during the same period. The results showed that the repeatability of the method was pretty well. The coefficients of variation of all analytical items, such as puff number, tar and nicotine condensed on the wall of the fishtail chimney and trapped by Cambridge filter pad, were less than 10% and those of total tar and total nicotine in sidestream smoke were below 5%. The results were close to the data obtained by JT. It was concluded that the method was suitable for the analysis of tar and nicotine in sidestream smoke. Meanwhile, the principles of sidestream smoke trapping and the selection of analytical conditions were also discussed.