顶空气相色谱法测定烟用胶中乙酸乙酯和乙酸乙烯酯

Testing ethyl acetate and vinyl acetate in cigarette adhesives by headspace gas chromatography

样品于800℃顶空加热25min后，利用GC（气相色谱）柱分离结合FID（氢火焰离子化检测器），建立了同时检测烟用胶中乙酸乙酯（EA）和乙酸乙烯酯（VAc）含量的顶空气相色谱（HS／GC）法。研究结果表明：该方法的线性相关系数均为0．9999，并且其检测数据的准确性和重现性良好[回收率为97．5％～104．8％且相对标准偏差（RSD）≤3．7％]，而且其检出限（LOD）≤0．13μg／mL、定量限（LOQ）≤0．42μg／mL；该方法具有简单、快速、准确和自动化等优点，并且其适用范围较厂。

The samples were treated at 80 ℃ for 25 min in headspaee, then the samples were separated by GC（gas chromatography） coh, mn and F1D（flame ionization detector）, so a method was established for simuhaneous delermination of ethyl acetate （EA） and vinyl acetate （VAc） contents in cigarette adhesives by headspace gas chromaiography （HS/GC） method. The research results showed that the linear correlation coefficients of the method were all 0.999 9, and its test data had good veracity and reproducibility[the recovery at 97.5%-104.8% and the relative standard deviation （RSD） not more than 3.7% ], besides, its detection limit （LOD） and quantification limit（LOQ） were not more than 0.13 μg/mL and 0.42 μg/mL, respectively. The method had some advantages（such as simple, rapid, accurate, and automated ） and wider applications range.