Principal component regression (PCR) method is used to analyse monocyclic and polycyclic aromatic hydrocarbons in white oil.The computer program of PCR is based on VB language.

• 摘要采用主成分回归紫外分光光度法分析白油中单环芳烃和多环芳烃的含量，运用计算机VB语言对实验数据进行回归分析。