选用PEG-20 M柱,对双环戊二烯中的杂质进行色谱分离,井用气相色谱、色谱-质谱联用、红外和紫外光谱、核磁共振及元素化学分析等手段,对杂质进行了定性。提出了双环戊二烯汽油稀溶液的浓度测定方法,相对误差为±3％。 The PEG-20 M column was used to separate the impurities in dicyclopentadiene. The impurities were characterized by gas chromatography, mass spectrometry, infrared and ultraviolet spectroscopy, nuclear magnetic resonance and elemental chemical analysis. Proposed dicyclopentadiene gasoline dilute solution concentration determination, the relative error of ± 3%.