论文部分内容阅读
建立了气相色谱-离子阱质谱联用测定玩具中丙烯酸乙酯等8种酯类致敏性芳香剂的方法。对于布绒和贴纸玩具样品,采用丙酮超声提取20 min后过0.45μm滤膜直接进样,对于塑料玩具样品,经相应溶剂提取,离心后,澄清溶液经Envi-carb石墨化碳固相萃取小柱净化,丙酮定容,过0.45μm滤膜后通过30 m HP-5 MS色谱柱分离,质谱进行检测,外标法定量。方法对于不同物质的定量限(LOQ)在0.05～8.0 mg/kg之间,线性范围为0.005～50 mg/L,在3个添加水平的平均回收率在80.2%～105.9%之间,RSD在0.7%～8.9%之间。该方法可用于玩具中丙烯酸乙酯等8种酯类致敏性芳香剂的检测。
A gas chromatography-ion trap mass spectrometry (HPLC-Ion trap mass spectrometry) method was developed for the determination of eight esters, such as ethyl acrylate, in toys. For the cloth velvet and the sticker toy samples, acetone was used for ultrasonic extraction for 20 min and then 0.45 μm filter was used for direct injection. For the plastic toy samples, after the corresponding solvent extraction and centrifugation, the clarified solution was purified by Envi-carb carbide carbon solid phase extraction The column was cleaned and fixed with acetone. After passing through a 0.45 μm membrane, it was separated by a 30 m HP-5 MS column and detected by mass spectrometry. The LOQ of different substances ranged from 0.05 to 8.0 mg / kg with a linear range of 0.005 to 50 mg / L. The average recovery was between 80.2% and 105.9% at three loading levels. RSD was between 0.7% ~ 8.9% between. The method can be used for the detection of eight ester-sensitizing fragrances such as ethyl acrylate in toys.