In this paper ridge regression spectrophotometry was used to analyze three components Acetaminophen, P Nitrophenol and P Aminophenol with absolute ethanol as the solvent.

• 用无水乙醇作溶剂，本文将岭回归分光光度法应用于对乙酰氨基酚，对硝基酚，对氨基酚三组分含量的分析。