氧选择性检测器测定汽油中醇醚类含氧化合物的研究

Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection

采用氧选择性火焰离子化检测器,用一根非极性毛细管色谱柱作为分析柱,测定无铅汽油中含氧化合物的含量及总氧含量。本文对仪器各部件的性能进行了考察,选择了最佳分析条件,建立了完善的分析方法。这套系统操作简单,分析时间短,数据准确,原理合理,符合国际上的发展趋势,便于技术推广,也为今后各炼厂及汽车行业控制无铅汽油中含氧化合物的含量创造了技术条件。

The paper introduced the method used to determine oxygenates in gasoline by gas chromatography and oxygen selective flame ionization detection. The optimized operational parameters of instrument and analytical conditions were suggested by the proposed method. A good linearity and high selection were obtained. The factors of affecting accuracy were discussed. The practical results showed that the method is simple, accurate and has a good precision. The method also provides a technical condition for conrolling the content of oxygenates in gasoline, and can be easily applied in petrochemical industry.