目的 建立纸质食品包装材料中 7 种指示性多氯联苯、7 种增塑剂、7 种氯酚类化合物、2 种二苯酮类化合物,以及 4-辛基酚、2-异丙基硫杂蒽酮和硬脂酸甲酯同时检测的分析方法。 方法 采用超声提取,气相色谱-串联四极杆质谱多反应监测模式分析。 结果 26 种有机残留物在 0. 02 ~ 2. 0 mg / kg范围内线性关系良好( r^{2>0 . 997 ) ,加标浓度在 0 . 1 mg / kg 时的平均回收率为 88 . 9% ~ 105 . 5% ,相对标准偏差低于 12 . 2% ;方法的检出限为 0 . 000 90 ~ 0 . 0035 mg / kg,定量限为 0 . 0031 ~ 0 . 012 mg / kg。应用该方法对实际样品进行了检测,发现绝大多数样品中均检测出邻苯二甲酸二苯酯类增塑剂( 检出含量为 0 . 006 ~ 7 . 02 mg / kg) ,部分样品还检测出硬脂酸甲酯( 检出含量为 0 . 069 ~ 0 . 43 mg / kg ) 。结论 该方法简单、快速、准确、灵敏,可用于纸质食品包装材料及类似基质中多种有机残留物的同时检测。}

Objective To develop a multi-residue method for the analysis of 7 indicator polychlorinated biphenyls ( PCBs) , 7 plasticizers, 7 chlorophenols ( CPs ) , 2 benzophenones, as well as 4- octylphenol ( 4- OP ) , 2- isopropyl thioxanthone ( ITX) , and methyl stearate in food packaging paper material. Methods Ultrasonic extraction and gas chromatography-tandem quadrupole mass spectrometry in multiple reaction monitoring ( MRM) mode was used. Results All of the 26 organic residues had good linear relationship ( r^{2>0. 997) in the range of 0. 02 ~ 2. 0 mg / kg. The recoveries of the 26 organic residues ranged from 88. 9 % to 105. 5 % at spike level of 0. 1 mg / kg with relative standard deviation ( RSD) below 12. 2 % . The detection limits of target compounds in the method were between 0. 000 90 mg / kg and 0. 0035 mg / kg. The quantification limits of target compounds in the method were between 0. 0031 mg / kg and 0. 012 mg / kg. The method was applied to the analysis of real samples, and plasticizers were detected in almost all of the samples ( the amount detected was between 0. 006 ~ 7. 02 mg / kg) , and methyl stearate was detected in part of the samples ( the amount detected was between 0. 069 ~ 0. 43 mg / kg) . Conclusion The method is simple, quick, accurate and sensitive, and applicable for the simultaneous and high through- put determination of multi-organic residues in food packaging paper material and samples with similar matrixes.}