气相色谱法测定四氢苯酐中杂质马来酸酐  

Determination of maleic anhydride in tetrahydrophthalic acid anhydride by gas chromatography

作　　者：郝成婷[1] 王红松 吴珂 孙文文 汤礼军 姚浩 

机构地区：[1]常州大学,常州213022 [2]常州出入境检验检疫局,常州213022 [3]常州进出口工业及消费品安全检测中心,常州213022

出　　处：《分析试验室》2013年第4期122-124,共3页Chinese Journal of Analysis Laboratory

基　　金：江苏出入境检验检疫局科技计划(2012KJ06)资助

摘　　要：建立了气相色谱法测定四氢苯酐中杂质马来酸酐含量的分析方法。样品经乙腈超声溶解后,用气相色谱分析,外标法定量。目标物马来酸酐在0.25～20.0 mg/L范围内线性关系良好(r=0.9999),检测限(S/N=3)为0.10 mg/L,在25、500和1000 mg/kg的3个添加水平下,目标物的平均回收率为99.4%～108.0%,相对标准偏差(n=6)为0.85%～3.6%。An analytical method based on GC has been established for the determination of maleic anhydride impurity in tetrahydrophthalic acid anhydride. The sample was dissolved in acetonitrile with ultrasonic processing, detected by GC and quantified by the external standard method. The calibration curve for the target analyte was linear in the range of 0. 25 ~ 15.0 mg/L （r = 0. 9999）, and the limit of detection （S/N = 3 ） was 0. 10 mg/L. The mean recoveries of the target analyte at the spiked levels of 25,500 and 1000 mg/kg were 99.4% - 108.0% with the relative standard deviations（ n = 6） of 0.85% ~ 3.6%.

关 键 词：气相色谱法 四氢苯酐 马来酸酐 

分 类 号：O657.7[理学—分析化学]