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Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (24): 2875-2882. Previous Articles     Next Articles

GC-EI-MS内标法分析鱼肉中邻苯二甲酸酯

谭君1,2, 林竹光*,2   

  1. (1湖南农业大学园艺园林学院药用资源工程系 长沙 410128)
    (2厦门大学化学化工学院化学系 现代分析科学教育部重点实验室 厦门 361005)
  • 投稿日期:2007-02-26 修回日期:2007-05-22 发布日期:2007-12-28
  • 通讯作者: 林竹光

GC-EI-MS Internal Standard Analysis of Phthalic Acid Esters in Fish

TAN Jun1,2; LIN Zhu-Guang*,2   

  1. (1 Department of Medicinal Resource & Engineering, College of Horticulture and Gardening, Hunan Agricultural University, Changsha 410128)
    (2 Key Laboratory of Analytical Sciences of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005)
  • Received:2007-02-26 Revised:2007-05-22 Published:2007-12-28
  • Contact: LIN Zhu-Guang

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The fish samples were cleaned up by Florisil, then analyzed by GC-EI-MS to determine eight phthalic acid esters, diethyl phthalate (DEP), dipropyl phthalate (DPrP), dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), dipentyl phthalate (DPeP), dicyclohexyl phthalate (DCHP), dihexyl phthalate (DHP) and diethyl hexyl phthalate (DEHP). The external standard and internal standard method were compared, and the pretreatment method was optimized. Especially, the problem of analytical blank control in this experiment was discussed carefully. The linear range of the method was 50.0～800 μg•L－1, and the linear correlation coefficient (R) was higher than 0.99986. The relative standard deviation of the method was less than 12.7% with the recovery values ranging from 74% to 113%. The limit of detection was lower than 3.66 μg•L－1. The linear range, accuracy, precision and limit of detection of this method can satisfy the request of simultaneous analysis of PAEs in fish by GC-EI-MS.

Key words: GC-EI-MS, fish, phthalic acid ester