气相色谱法测定高纯度二甲醚中的微量甲醇  

Determination of Micro Amount of Methanol in Pure Dimethyl Ether(DME) by Gas Chromatography

作　　者：冯钰安[1] 蒋立文[1] 徐红斌[1] 

机构地区：[1]上海石油化工研究院

出　　处：《石油化工》1997年第8期545-547,共3页Petrochemical Technology

摘　　要：应用气相色谱法，采用ＰｏｒａｐａｋＴ填充色谱柱、液相直接进样和液相外标、ＦＩＤ检测器，测定了高纯二甲醚（ＤＭＥ）中的微量甲醇，其相对标准偏差＜±６％，加标回收率为１００．０％～１００．２％。方法简便、准确，用于实际样品分析可得到满意结果。This paper described a gas chromatographic method for the analysis of micro amount of methanol in pure dimethyl ether(DME).A Porapak T column(φ2mm×3m) is used in 110℃,The sample is injected directly in liquid phase and with liquid external standard;N 2 is used as carrier gas;and FID detector is employed. The results show that the recovery is 100 0%～100 2% and the relative standard deviation is less than ±6%.This method is simple,accurate and useful for controlling the quality of pure DME products.

关 键 词：气相色谱法 甲醇 二甲醚 测定 

分 类 号：TQ223.24[化学工程—有机化工] O657.71[理学—分析化学]