气相色谱内标曲线法测定酯交换反应体系中苯甲酸乙烯酯含量  

Determination of Vinyl Benzoate in the Vinyl Interchange Reaction by Internal Standard Gas Chromatography

作　　者：李萍[1] 赵文[1] 符孟乐[1] 于鼎杰[1] 郭登峰[1] 

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《常州大学学报（自然科学版）》2012年第1期7-9,共3页Journal of Changzhou University：Natural Science Edition

摘　　要：采用气相色谱内标曲线法测定醋酸乙烯和苯甲酸酯交换反应体系中苯甲酸乙烯酯含量,对色谱柱、内标物等色谱条件进行了研究。结果表明:选用乙二醇丁醚醋酸酯为内标物,FFAP毛细管色谱柱,采用程序升温,样品中各组分能实现有效分离。采用内标曲线法测定反应液中苯甲酸乙烯酯,线性关系良好,线性回归方程为y=6.011 6x+0.103 6,线性相关系数为0.9959。相对标准偏差0.66%,加标回收率为98.99%-101.30%。该分析方法简单、快速、准确,对苯甲酸乙烯酯生产和质量控制有一定的指导意义。A method for determination of vinyl benzoate in ester exchange reaction between vinyl acetate and benzoic acid was studied.With ethylene glycol monobutyl ether acetate as internal standard,Gas chromatographic analysis was made by using FFAP capillary column and programming temperature.The results showed that good separation effect was obtained.The linearity was good for vinyl benzoate.The linear equation was y=6.011 6x＋0.103 6 and the linear correlation coefficient was 0.995 9.The relative standard deviation was 0.66% and the average recovery ranged between 98.99%-101.30%.The analysis method proved simple,accurate and reproducible.

关 键 词：气相色谱 苯甲酸乙烯酯 内标曲线法 分析 

分 类 号：TQ415[化学工程]