烟草科技2018，Vol.51Issue(2)：41-47,7.
GC-TCD法测定卷烟滤棒中的水分
Determination of moisture in cigarette filter rod by GC-TCD
摘要
Abstract
In order to accurately determine the moisture content in an unused cigarette filter rod, a gas chromatography-thermal conductivity detector (GC-TCD) method was established by using acetonitrile as internal standard and isopropanol as extraction solvent for oscillation extraction. The test results of the developed method were compared with those measured using a standard method (the oven method). The results showed that: 1) The limit of detection, recoveries, relative standard deviations (RSDs) of the developed method was 0.03%, 96.5%-108.3%, 0.32%-3.07%, respectively. 2) When filter rod was free of triacetin (glycerol triacetate, GT), the results obtained by the two methods were basically the same. However, the result of oven method was about twice as high as that of GC-TCD method if filter rods contained triacetin. 3) The moisture contents of filter samples, include one acetate fiber filter rod and ten polypropylene fiber tow filter rods, by GC-TCD method were 1.88% and 3.65%-6.17%, respectively, which were lower than the required limit. This method solves the issue of relative higher moisture contents during using the oven method caused by the thermal volatilization of triacetin in filter rod, the detection result is more accurate and reliable. The method is simple, sensitive, and suitable for determining the moisture content in different cigarette filter rods.关键词
卷烟/滤棒/含水率/三乙酸甘油酯/气相色谱-热导检测器(GC-TCD)/烘箱法Key words
Cigarette/Filter rod/Moisture content/Triacetin/Gas chromatography-thermal conductivity detector (GC-TCD)/Oven method分类
轻工纺织引用本文复制引用
王雨凝,朱书秀,许高燕,陈晓水,斯文,陆明华,严春芳,张宸,蒋佳磊..GC-TCD法测定卷烟滤棒中的水分[J].烟草科技,2018,51(2):41-47,7.基金项目
国家烟草专卖局标准项目"滤棒中水分的测定气相色谱法"(2016B008). （2016B008）
