原位电离-离子迁移谱法现场快速筛查玩具中5种酚类化合物

Rapid,On-Site Identification of 5 Phenolic Compounds in Toys by Ion Mobility Spectrometry with In-Situ Ionization

采用原位电离-离子迁移谱法现场快速筛查玩具中5种酚类化合物。玩具样品无需前处理,采用萃取纳升喷雾或纸喷雾原位电离方式,在11 ms内完成离子迁移谱法的检测,5种酚类化合物的检出限(3S/N)在0.5~1.5mg·kg^(-1)之间。筛查出的疑似阳性样品,进一步采用高效液相色谱-串联质谱法进行确证。

Ion mobility spectrometry was applied to rapid,on-site identification of 5 phenolic compounds in toys with in-situ ionization.Without any sample pretreatment,the toy sample was ionized with in-situ ionization（extractive nanoliter-electrospray or paper spray）.The inspection could be completed within 11 ms.The detection limits（3 S/N）of the 5 phenolic compounds were in the range of 0.5-1.5 mg·kg-1.The suspicious positive sample was subjected to further verification by HPLC-MS/MS,which gave confirmable results.