食品科学 ›› 2007, Vol. 28 ›› Issue (1): 239-242.

• 分析检测 • 上一篇    下一篇

基质固相分散-液相色谱法测定柑桔中唑螨酯残留

 王进, 岳永德, 花日茂, 汤锋, 李学德, 操海群   

  1. 国际竹藤网络中心; 安徽农业大学资源与环境学院; 安徽农业大学资源与环境学院 北京100102; 北京100102; 安徽合肥230036;
  • 出版日期:2007-01-15 发布日期:2011-12-31

Determination of Fenpyroximate Residue in Orange by Matrix Solid-phase Dispersion and Liquid Chromatography

 WANG  Jin, YUE  Yong-De, HUA  Ri-Mao, TANG  Feng, LI  Xue-De, CAO  Hai-Qun   

  1. 1.International Centre for Bamboo and Rattan, Beijing 100102, China; 2.College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
  • Online:2007-01-15 Published:2011-12-31

摘要: 为优化唑螨酯在柑桔中残留分析方法,采用基质固相分散萃取、HPLC检测,结果表明:柑桔样品中唑螨酯适于基质固相分散萃取,以氧化铝作为分散剂,乙酸乙酯为洗脱剂,淋出液过氧化铝柱净化后HPLC测定,最低检出浓度为0.0625mg/kg,当桔皮、桔肉样品中添加浓度为0.1~1.0mg/kg时,方法的回收率在81.9%~96.3%之间,相对标准偏差为3.73%~7.54%,满足残留分析的要求。

关键词: 基质固相分散, 唑螨酯, 残留, 柑桔, 液相色谱

Abstract: A method was developed for the determination of fenpyroximate residue in orange samples based on matrix solid- phase dispersion(MSPD) and HPLC. The results showed that taking neutral alumina as a matrix dispersing agent, the fenpyroximate residue in orange samples is appropiate for MSPD extraction. Fenpyroximate is extracted with ethyl acetate and the extract is subsequently cleaned up on an alumina column.The fenpyroximate residue is determined by high-performance liquid chromatography.The limit of quantitation is 0.0625mg/kg. With orange pulp and orange peel spiked by fenpyroximate, covering the concentration range of 0.1 to 1.0mg/kg, the average recovery and relative standard deviations(RSD)of this method are 81.9%~96.3% and 3.73%~7.54% ,respectively.

Key words: matrix solid-phase dispersion(MSPD), fenpyroximate, residue, orange, liquid chromatography