液晶玻璃毛细管柱色谱和色-质联用分离和鉴定煤焦油馏分

Separation and identification of the fractions of coal tar by using liquid crystal glass capillary chromatography and gas chromatography-mass spectrometry

摘要: 本文用BaCO_3沉积法预处理玻璃毛细管柱,用静态法分别涂以五种液晶固定液(BMBT、BBBT、EPMB、BPBAmB、MPBOB),所得五种液晶玻璃毛细管柱用于分离四种煤焦油馏分——蒽油、洗油、酚油和轻油。发现BBBT和EPMB对蒽油和洗油可得较佳的分离结果;MPBOB毛细管柱可用于分离酚油和轻油。各馏分中分离出的组分数分别为140,100,50,40,流出时间分别为40、30、18和12分钟。各馏分中分离出的组分进行了纯物质对照和色-质联用定性。

Abstract: The prepared liquid crystal glass capillary columns are used for the separation of the four coal tar fractions anthracene oil, washing oil, phenol oil and light oil. Before the glass capillary columns are coated with different liquid crystals by using static coating technique, the columns are pretreated by barium carbonate deposit method. It has been found that better results can be obtained by using BBBT and EPMB columns for separating the anthracene oil and washing oil respectively. MPBOB column is used for separating phenol and light oil The separated components of each fraction are 140, 100, 50, 40 and are eluted in 40, 30, 18, 12 minutes respectively. The components of each fraction are identified by using GC-MS and standard components.