【摘要】 采用气相色谱法 ,以甲酸甲酯为内标物 ,对在所研制催化剂作用下氧化反应前后的醋酸丁酯、二甲苯和苯进行了一次定量分析。色谱条件为 10 % PEG- 2万 10 1白色硅烷化担体 ,2 m× 3 mm色谱柱 ,柱温 110℃ ,检测温度 130℃。得到苯、醋酸丁酯、二甲苯和内标物的保留时间分别为 1.13、3.45、4.47和 2 .5 2 (m in) ,方法回收率 97.4%～ 10 1.84% ,线性相关系数大于 0 .980。结果表明 ,方法简便、准确、快速更多还原

【Abstract】 The quantitative analysis of the mixture of butyl acetate, dimethylbenzene and benzene is done with gas chromatography, taking methyl formate as internal standard. The chromatography conditions are: 10% PEG-20000 on 101 white silanization supporter, 2 m×3 mm chromatographic column at column temperature of 110℃ and detecting temperature being 130℃. The retention time of benzene, butyl acetate, dimethylbenzene and internal standard of butyl formate are respectively 1.13, 3.45, 4.47 and 2.52(minutes). The recoveries are between 97.4% and 101.84%. The linear correlation coefficients are more than 0.980. the results show that the adopted method is simple, accurate and quickly.更多还原