判别分析用于烃类化合物分类及汽油样品的族组成分析

The Classification of Hydrocarbons with Discriminant Analysis and the Family Component Analysis of Gasoline

研究了判别分析用于烃类化合物分类的可行性。以１９８个烃类化合物在ＢＤ－１和ＢＤ－５固定相上同一柱温下的保留指数差及其在各柱上的温度系数为判别变量，成功地建立了烷烃、环烷烃、芳烃和烯烃的判别函数，以此对裂化汽油、重整生成汽油、石脑油和蒸馏常顶汽油进行了族组成分析，经气相色谱－质谱分析验证了结果的正确性，为汽油产品的族组成分析提供了一种新方法。

The feasibility of classification of hydrocarbons with discriminant analysis was studied. The differences of retention indices of 198 hydrocarbons on stationary phases DB-1 and DB-5 at the same temperature and their temperature coefficients of retention indices on each column were used as discriminant variables. The discriminant functions of paraffins (P), olefines (O), naphthenes (N) and aromatics (A) were established successfully. The family component analyses of cracked gasoline, reformed gasoline, naphtha and straight run gasoline were proceeded by the method. The correctness-of the result was fully proved by gas chromatography-mass spectrometry.