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应用高效液相色谱，在反相Ｃ１８色谱柱上对对甲基苯酚氧化反应液进行内标法定性定量分析．流动相为甲醇（Ａ）和含０．２ｍｏｌ／Ｌ冰醋酸水（Ｂ）的混合溶液，Ａ：Ｂ（体积）＝５５：４５，流速１．０ｍＬ／ｍｉｎ，紫外检测波长２７５ｕｍ，内标物为苯酚．
High performance liquid chromatography (HPLC) was used to conduct qualitative and quantitative internal standard analysis of p-methylphenol oxidation reaction liquid on reversed-phase C18 column. The mobile phase consisted of methanol (A) and mixed solution containing 0.2mol / L glacial acetic acid (B), the volume ratio of A: B was 55:45, the flow rate was 1.0mL / min and the UV detection wavelength was 275um. Phenol.