橡胶油中PCA和PAHs含量的快速检测方法

Rapid Determination of PCA and PAHs Contents in Rubber Oil

用薄层色谱/氢火焰离子化检测器（TLC/FID）和气相色谱-质谱联用（GC-MS）分别快速检测橡胶油的多环芳香族化合物（PCA）和多环芳烃（PAHs）含量。结果表明：TLC/FID与IP 346检测的橡胶油PCA含量接近,TLC/FID检测法的加标回收率为95%--105%;GC-MS与德国BIU公司检测的橡胶油PAHs含量接近,GC-MS检测法的加标回收率为97%~104%。2种检测方法操作简单、试剂用量小、准确度高、重复性好。

The PCA and PAHs contents in rubber oil were measured rapidly by TLC/FID and GC-MS, respectively. The experimental testing results showed that the PCAs content of rubber oil measured by TLC/FID was close to the IP 346 method, while the recovery of added standard was 95%-105% by using TLC/FID. The PAHs content of rubber oil detected by GC-MS was close to the result measured by German company BIU, and the recovery of added standard was 97%-104% with GC-MS method. These two detection methods are simple, consume only small amount of testing reagents, and provide high accuracy and good reproducibility.