快速溶剂萃取-气相色谱/质谱法测定奶粉中18种多氯联苯
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摘要
采用快速溶剂萃取-气相色谱/质谱法对奶粉中18种多氯联苯进行了快速溶剂萃取测定。通过优化快速溶剂萃取条件,减少了组份的损失;通过改变气质联用仪器条件,选取了最佳测定参数,对18种多氯联苯进行了快速分离测定。该方法具有操作简便、灵敏度高、检出限低、快速、溶剂消耗少等优点,对奶粉中多氯联苯的检出限为0.15～0.85μg/kg;加标回收率为70.9%～100.1%。
Rapid solvent extraction-gas chromatography/mass spectrometry was used to determine 18 polychlorinated biphenyls in milk powder. By optimizing the conditions of rapid solvent extraction, the loss of components was reduced. By changing the conditions of gas chromatography-mass spectrometry(GC-MS), the optimum parameters were selected for the rapid separation and determination of 18 PCBs. The method has the advantages of simple operation, high sensitivity, low detection limit, rapidity and less solvent consumption. The detection limit for PCBs in milk powder is 0.15～0.85 ug/kg, and the recovery is 70.9 %～100.1 %.
Rapid solvent extraction-gas chromatography/mass spectrometry was used to determine 18 polychlorinated biphenyls in milk powder. By optimizing the conditions of rapid solvent extraction, the loss of components was reduced. By changing the conditions of gas chromatography-mass spectrometry(GC-MS), the optimum parameters were selected for the rapid separation and determination of 18 PCBs. The method has the advantages of simple operation, high sensitivity, low detection limit, rapidity and less solvent consumption. The detection limit for PCBs in milk powder is 0.15～0.85 ug/kg, and the recovery is 70.9 %～100.1 %.
引文
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[2]Xu S,Chen T,Li X,et al.Aerosol Air Qual Res,2018,18(4):1008.
[3]Liu G R,Yang L L,Zhan J Y,et al.Waste Manage,2016,58:280.
[4]Folarin B T,Abdallah A E,Oluseyi T,et al.Chemosphere,2018,207:620.
[5]Crinnion W J.Altern Med Rev,2011,16(1):5.
[6]Donat-Vargas C,Akesson A,Berglund M,et al.Brit J Cancer,2016,115(9):1113.
[7]Ruder A M,Hein M J,Hopf N B,et al.Am J IndMed,2017,60(2):198.
[8]刘静,王丽,曾兴宇,等.固相萃取一气相色谱法测定海水中狄氏剂和多氯联苯[J].岩矿测试,2014,3(2):282-286.
[9]王建华,张艺兵,林黎明,等.毛细管气相色谱法同时测定水产品中的多氯联苯和有机氯农药残留量[J].化学分析计量,2003,12(2):13-15.
[10]艳洁,李莉,马新东,等.硅胶分离-气相色谱法测定海水样品中的有机氯农药及多氯联苯[J].中国环境监测,2009,25(5):39-41.
[11]刘秀芝.微波方法提取土壤中多氯联苯和有机氯农药研究[J].黑龙江环境通报,2016(31):29-38.
[12]卢宪波,陈吉平,王淑秋,等.贻贝中有机氯农药和多氯联苯标准物质的研制及:同位素稀释高分辨质谱法定值[J].色谱,2012,9(9):915-921.
[13]胡礼渊,邓集煜,廖和菁,等.分散固相萃取-气相色谱法测定水产品中多氯联苯[J].食品科学,2016,37(14):207-212.
[14]费勇,杨晓红,张海燕,等.全自动凝胶色谱净化一气相色谱法同时测定淡水鱼类中多氯联苯和有机氯农药等36种残留有机物[J].2011,4(2):63-67.
[15]许仁杰,蔡春平,丁立平等.双重净化-气相色谱法同时测定蛋及蛋制品中六六六、滴滴涕和指示性多氯联苯[J].食品科学,2016,37(24):222-227.
[16]杨佳佳,佟玲,吴淑琪,等.加速溶剂萃取-气相色谱法测定谷物中有机氯农药和多氯联苯[J].岩矿测试,2013,6(3):487-494.
[17]艾连峰,李玮,王敬,等.气相色谱-串联质谱法测定牛奶中多氯联苯及多环芳烃[J].分析测试学报,2015,5(5):570-575.
[18]张磊,李敬光,吴永宁,等.自动样品前处理在乳品中二恶英和共平面多氯联苯同时测定的应用[J].色谱,2007,25(6):887-892.