摘要
建立塑胶玩具中多环芳烃的气相色谱–质谱检测方法。样品用四氢呋喃溶剂超声提取60 min,提取液以乙腈净化。以DB–5MS色谱柱为分离柱,柱温程序:70℃保持1 min,以10℃/min升温至240℃,保持2 min,然后以8℃/min升温至280℃,保持5 min。16种多环芳烃的质量浓度在0.002～0.18 mg/L范围内线性良好,相关系数均大于0.991,定量限为0.12～0.20 mg/kg。测量结果的相对标准偏差为4.2%～7.4%(n=6),加标回收率为84.9%～116.7%。该方法简单、快速、准确、重现性好,能够满足目前对塑胶玩具中多环芳烃的检测要求。
A method for determination of 16 polycyclic aromatic hydrocarbonsion(PAHs)in plastic toys by gas chromatography-mass spectrometry was established.Tetrahydrofuran was used as solvent,the sample was extracted by ultrasound for 60 min,then purify with acetonitrile,and separated by DB-5MS chromatographic column,temperature programing:keeping 70℃for 1 min,with 10℃/min up to 240℃,keeping 2 min,then with 8℃/min up to 280℃,keeping 5 min.16 PAHs had good linear relationships in the range of 0.002-0.18 mg/L,the correlation coef fi cients were more than 0.991,the quantitative limits were 0.12-0.20 mg/kg,the relative standard deviations of determination results were 4.2%-7.4%(n=6),the standard recovery rates were 84.9%-116.7%.The method is simple,rapid,accurate and reproducible,which can meet the present detection requirements of polycyclic aromatic hydrocarbons in plastic toys.
作者
陈峰
黄豪杰
楼佳
许菲菲
姜士磊
石文超
CHEN Feng;HUANG Haojie;LOU Jia;XU Feifei;JIANG Shilei;SHI Wenchao(Yiwu Inspection and Quarantine Academy of Science and Technology,Yiwu 322000,China)
出处
《化学分析计量》
CAS
2019年第2期68-71,共4页
Chemical Analysis And Meterage
