【摘要】 本文以活性炭吸附丝采集“永芳F真珠膏”的挥发性组份，用GC－9A气相色谱仪进行测定。对24个真品进行R型聚类分析和因子分析，提取了14个特征指标，并以Q型聚类方式建立了鉴别“永芳F真珠膏”真伪的数学模型，用3个假冒产品和2个真品对模型进行验证，结果令人满意。更多还原

【Abstract】 The volatile compounds of "YongFang F pearl cream" were absorbed by coated wire, and analyzed by GC-9A chromatography. The results of 24 true products were studied by using R-type cluster and factor analysis, and 14 features were extracted. The mathemati cal pattern of identifying true of false of "YongFang" was established by Q-type cluster. It is satisfactory that the pattern was verified by testing 3 false and 2 true products.更多还原