气相色谱法测定二甲醚和液化石油气混合燃料组分含量  

Gas chromatographic determination of components in mixed fuel of DME and LPG

作　　者：李薇[1] 李继文[1] 王川[1] 

机构地区：[1]上海石油化工研究院,上海201208

出　　处：《分析仪器》2009年第5期56-58,共3页Analytical Instrumentation

摘　　要：采用CP-Porabond Q毛细管色谱柱(25m×0.32mm×5μm),对二甲醚和液化石油气混合燃料组分含量进行了气相色谱法测定。结果表明,该色谱柱能很好地分离混合燃料中的C1～C3烷烯烃、甲醇和二甲醚。确定了微量甲醇及二甲醚的含量以及C5和C5以上组分的含量。采用液体进样阀液相直接进样,保证样品不失真,测定结果有良好的准确度和精密度。Components in the mixed fuel of DME and LPG were analyzed by gas chromatography with a CP- Porabond Q capillary column （25m×0.25mm,5μm）. The results showed that C1 -C3, methanol and DME could be well separated, and the contents of trace methanol, DME, C5, and components heavier than C5 could be determined quantitatively. Liquid samples directly injected by liquid phase sample injection valve avoided distortion of samples. The results are accurate and precise.

关 键 词：气相色谱法 甲醇 二甲醚 液化石油气 混合燃料 

分 类 号：TQ517[化学工程]