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目的:建立以毛细管气相色谱法测定吉法酯中正己烷、乙醇、乙酸乙酯、异丙醚和二甲苯5种有机溶剂残留量的方法。方法:采用Phenomenex ZB-WAXPLUS毛细管柱(30 m×0.25 mm,0.25μm),以氮气为载气,FID为检测器,溶液直接分流进样,检测吉法酯中正己烷、乙醇、乙酸乙酯、异丙醚和二甲苯的残留量。结果:几种溶剂完全分离,在所考察的线性范围内具有良好的线性关系,r>0.999 0,平均回收率在97.0%～101.0%范围内,RSD在0.5%～4.2%之间。结论:本法简便、快速、准确,适用于吉法酯中有机溶剂残留量的测定。
OBJECTIVE: To establish a method for the determination of the residues of 5 organic solvents, n-hexane, ethanol, ethyl acetate, isopropyl ether and xylene in jerphastiol by capillary gas chromatography. METHODS: Phenomenex ZB-WAXPLUS capillary column (30 m × 0.25 mm, 0.25 μm) was used. The detector was FID with nitrogen as the carrier gas. The solution was split directly into the sample and the n-hexane, ethanol and ethyl acetate , Isopropyl ether and xylene residues. Results: Several solvents were completely separated and had a good linear relationship in the linear range. The average recoveries ranged from 97.0% to 101.0% with RSD ranging from 0.5% to 4.2%. Conclusion: This method is simple, rapid and accurate and is suitable for the determination of organic solvent residues in jifaester.