气相色谱-质谱联用测定苯乙烯中的阻聚剂对叔丁基邻苯二酚  

Determination of p-tert-Butylcatechol in Styrene Monomer by Gas Chromatography/Mass Spectrometry

作　　者：陈朝方[1] 李忠[1] 郭建[1] 罗玉玮[1] 

机构地区：[1]珠海出入境检验检疫局,广东珠海519015

出　　处：《色谱》2002年第3期272-273,共2页Chinese Journal of Chromatography

摘　　要：建立了气相色谱 质谱联用 (GC/MS)测定苯乙烯中阻聚剂对叔丁基邻苯二酚含量的方法。苯乙烯样品直接进样 ,通过毛细管柱 (HP 1,30m× 0 32mmi.d .× 0 2 5 μm)分离 ,由电子轰击 (EI)源于选择离子监测 (SIM)模式下进行检测。结果表明 ,对叔丁基邻苯二酚含量在 5mg/kg～ 5 0mg/kg时线性关系良好 (r2 =0 9987) ,回收率高 ;与美国材料测试标准ASTMD4 5 90中的分光光度测量法比较具有操作简捷、准确度高的特点。An efficient method for the determination of p tert butylcatechol (TBC) in styrene monomer by gas chromatography/mass spectrometry (GC/MS) has been established. The sample was injected directly, and separated by gas chromatography with capillary column (HP 1, 30 m×0 32 mm i.d. ×0 25 μm), then determined by a mass spectrometer with electron impact (EI) at selected ion monitoring (SIM) mode. There was a good linear relationship within the range of 5 mg/kg- 50 mg/kg ( r 2 = 0 998?7 ). Compared with the colorimetric determination by a spectrophotometer (ASTM D4590), the method was proved to be fast and accurate.

关 键 词：测定 气相色谱-质谱联用 苯乙烯 对叔丁基邻苯二酚 阻聚剂 

分 类 号：TQ241.21[化学工程—有机化工]