煤液化产品无论是用于制造液体燃料、提供化工原料,还是做为煤液化溶剂,都需要了解它的化学组分。在这方面毛细管气相色谱(GC)及质谱技术具有优越的功能。煤液化油沸程宽,结构类型复杂,组分繁多,单独使用GC或MS技术不可避免峰重叠和非同系物的质量重叠问题,难以得到较好的分析结果。GC/MS联用技术在缺少标样 Coal liquefaction products, whether it is used to make liquid fuels, provide chemical raw materials, or as a coal liquefaction solvent, need to understand its chemical composition. Capillary gas chromatography (GC) and mass spectrometry have excellent capabilities in this area. Coal liquefied oil has wide range of boiling range, complex structure type and various components. The problem of mass overlap between peak overlap and non-homologue can not be avoided by using GC or MS alone, and it is difficult to obtain good analysis results. GC / MS in the absence of standard technology