用大口径厚液膜DEGS交联玻璃毛细管柱分析植物油脂肪酸的组成

Analysis of Fatty Acids in Vegetable Oils by Crosslingked DECS Glass Capillary Column with Large-Diameter and Thick Film

对植物油脂肪酸组成的分析,通常采用二乙二醇丁二酸聚酯(DEGS)固定液的填充柱。由于填充柱柱效不高,在制备柱子时掌握不好常使硬脂酸、油酸等组分不能很好分离。一般只分析到芥酸,分析时间长,这些都会影响分析结果。大口径厚液膜交联柱比填充柱柱效高很多,并有柱容量大、耐溶剂,柱寿命长等特点,1983年以来发展很快,受到广泛重视。国内对大口径甲基硅酮交联柱的研究和应用已有报道。我们首次研制了大口径厚液膜DEGS交联柱,并用于植物油脂肪酸组成的分析。

The cross-linked DECS glass capillary column with large-diameter and thick-film was prepared and used for the analysis of fatty acids in vegetable oil. The C24:1 acid can be determined within 15 min. The capillary column possesses the advantages of better resolution and shorter analysis time.