气相色谱法同时测定苯甲醛、苯甲醇和苯甲酸  

The Simultaneous Determination of Benzaldehyde,Benzyl Alcohol and Benzoic Acid by Gas Chromatography

作　　者：谭平华[1] 唐盛伟[1] 刘长军[1] 李辉[1] 吴潘[1] 梁斌[1] 

机构地区：[1]四川省多相流传质与反应工程重点实验室四川大学化工学院,成都610065

出　　处：《天然气化工—C1化学与化工》2007年第2期64-66,共3页Natural Gas Chemical Industry

基　　金：中石化;国家自然科学基金委联合资助项目(项目批准号:20233040);国家自然科学基金资助项目(项目批准号:20576081)

摘　　要：系统地建立了一套简单、快速、能同时定量分析甲苯液相催化氧化主要产物苯甲醛、苯甲醇及苯甲酸的气相色谱分析方法。采用FFAP毛细管柱和氢火焰离子化检测器(FID),以邻硝基甲苯为内标标定苯甲醛、苯甲醇,以邻苯二甲酸二甲脂为内标标定苯甲酸。结果表明,苯甲醛、苯甲醇、苯甲酸样品的平均回收率和标准偏差(RSD)分别为105.39%,101.94%,97.18%和3.19%,3.71%,1.66%。该分析方法简单、快速、精度高。A specific GC analysis method was established for the rapid quantification of the main products of liquid-phase oxidation of toluene, namely, benzaldehyde, benzyl alcohol and benzoic acid. A GC equipped with a FFAP capillary and a FID detector was adopted. O-nitrotoluene and dimethylphthalate were used as internal standards of benzaldehyde, benzyl alcohol and benzoic acid respectively. The results indicated that the mean recovery rate for spiked samples are 105.39%, 101.94%, 97. 18%, respectively, and the standard deviations are 3. 19%, 3.71%, 1.66%, respectively.

关 键 词：气相色谱 苯甲醛 苯甲醇 苯甲酸 

分 类 号：O65[理学—分析化学]