食品科学 ›› 2008, Vol. 29 ›› Issue (8): 543-546.

• 分析检测 • 上一篇    下一篇

一种新型毛细管色谱柱在2,3,7,8-TCDD检测中的应用

李吉平, 刘林娜, 周爽, 陈悦鸣, 刘文森, 孙玉成, 高宏伟, 宋日哲   

  1. 军事医学科学院军事兽医研究所; 长春市疾病预防控制中心
  • 出版日期:2008-08-15 发布日期:2011-08-26

Detection of 2,3,7,8-Tetrachlorodibenzo-P-dioxin in Fish Meat with A New Type Capillary Chromatographic Column

 LI  Ji-Ping, LIU  Lin-Na, ZHOU  Shuang, CHEN  Yue-Ming, LIU  Wen-Sen, SUN  Yu-Cheng, GAO  Hong-Wei, SONG  Ri-Zhe   

  1. 1.Institute of Veterinary Science,Academy of Military Medical Science,Changchun 130062,China;2.Center Disease Prevention and Control of Changchun City,Changchun 130033,China
  • Online:2008-08-15 Published:2011-08-26

摘要: 本实验利用DB-Dioxin毛细管色谱柱和GC-ECD成功建立了鱼肉组织中2,3,7,8-四氯代二苯并-P-二噁含量的检测方法。采用Bio-beads S-X3凝胶色谱柱和多色谱纯化对样品进行前处理,以DB-Dioxin毛细管色谱柱进行分离,ECD对鱼肉组织中的2,3,7,8-TCDD进行检测。结果该方法在1.5~100pg范围内呈线性关系(R2=0.9999),标准回收率为103.2%±3.04%,变异系数为2.95%,其最低检测限为1pg。2,3,7,8-TCDD和其衍生物及样品中的杂质分离良好。

关键词: 毛细管色谱柱, GC, 2, 3, 7, 8-TCDD

Abstract: The study aimed to set up a method of GC-ECD(electron capture detector) and DB-Dioxin capillary chromatographic column for the detection of 2,3,7,8-TCDD in fish meat. Sample was purified by Bio-beads S-X3 GPC,separated in DB-Dioxin capillary column and detected by GC-ECD. The results showed that the detecion of 2,3,7,8-TCDD has better linearity in the range of 1.5 to 100 pg(R2=0.9999). The average standard recovery rate is 103.2%±3.04% with variation coefficient 2.95%. The detection limit is 1pg. It was demonstrated that 2,3,7,8-TCDD is well separated from sample.

Key words: capillary chromatographic column, GC, 2,3,7,8-TCDD