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分析化学  2013 

分散固相萃取净化气相色谱-质谱联用法快速检测纸质包装材料中18种光引发剂

DOI: 10.3724/SP.J.1096.2013.30086, PP. 1334-1340

Keywords: 光引发剂,分散固相萃取,纸质包装材料,气相色谱-质谱联用法

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Abstract:

建立了一种分散固相萃取(d-SPE)净化、气相色谱-质谱联用法(GC-MS)检测纸质包装材料中18种光引发剂(PIs)的分析方法。样品经水浸润后,用乙腈对样品进行超声提取,提取液经正己烷-乙酸乙酯溶液(3:7,V/V)液液萃取后,用无水MgSO4、N-丙基乙二胺(PSA)和C18粉末分散固相萃取净化,以GC-MS法测定,内标法定量。18种PIs在0.01~0.2mg/L内线性关系良好(R2>0.997),3个加标水平(0.1,0.4和2mg/m2)的回收率在81.6%~123.8%之间,相对标准偏差(RSD)为0.2%~9.6%,检出限(LOD)为0.007~0.023mg/m2。结果表明:本方法简便、测定结果准确,可用于纸质包装材料中18种光引发剂残留的高通量检测。

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