【摘要】 <正> 蒽、菲和咔唑是焦化产品中经常要测定的组份。过去曾有人用氯化镉加聚乙二醇-20M色谱柱、液晶填充柱、液晶不锈钢毛细管色谱柱分离蒽、菲和咔唑,但分析周期均较长。我们曾用半米长联苯型芳羧酸酯类液晶填充柱分离这一混合物,分析时间仍不够理想。本文采用双-(对正戊氧基苯甲酸)-4,4＇-联苯二酚酯液晶的WCOT柱分离蒽、菲和咔唑的混合物得到满意的结果。更多还原

【Abstract】 Rapid gas chromatographic separation of the mixture of phenanthrene, anthracene and carbazole has been studied using biphenylene bis-(p-n-amyoxybenzoate)as stationary phase. On a 11M glass capillary column coated with this liquid crystal the components can be separated satisfactorily at 220℃ within 5 minutes.更多还原