毛细管气相色谱法分析甲酚异构体

Separation and determination of cresol isomers with capillary gas chromatography

建立一种测定邻甲酚、间甲酚和对甲酚的毛细管气相色谱分析方法。邻甲酚和间甲酚的峰面积与浓度在2~200g/L范围内呈线性关系,相对标准偏差分别为1.84%、1.67%;对甲酚在2~210g/L范围内呈线性关系,相对标准偏差为1.63%,测定回收率均在96.4%~103.8%。

This paper establishes a separation and determination method for o-cresol, m-cresol and p -cresol with capillary gas chromatography. The peak area and concentration of o-cresol and m-cre- sol have linear relationship in the range of 2-200g/L, and the relative standard deviation is respec- tively 1.84% and 1.67% ; the same of p-cresol has linear relationship in the range of 2-200g/L, and the relative standard deviation is 1.63% . The determined recovery rate of them are all between 96.4%- 103.8%.