食品科学 ›› 2009, Vol. 30 ›› Issue (2 ): 196-200.doi: 10.7506/spkx1002-6630-200902043

• 分析检测 • 上一篇    下一篇

固相微萃取- 气相色谱法测定浓缩苹果汁中的8 种有机磷农药残留

孔祥虹   

  1. 陕西出入境检验检疫局
  • 收稿日期:2007-11-19 修回日期:2008-03-22 出版日期:2009-01-15 发布日期:2010-12-29
  • 通讯作者: 孔祥虹 E-mail:kong-xianghong@163.com

Determination of Organophosphorous Pesticide Residues in Apple Juice Concentrate by Solid Phase Microextraction-Gas Chromatography

KONG Xiang-hong     

  1. (Shaanxi Entry-Exit Inspection and Quarantine Bureau, Xi'an 710068, China)
  • Received:2007-11-19 Revised:2008-03-22 Online:2009-01-15 Published:2010-12-29
  • Contact: KONG Xiang-hong E-mail:kong-xianghong@163.com

摘要:

采用固相微萃取技术测定浓缩苹果汁中有机磷农药残留量,对固相微萃取条件进行了选择。结果表明,本法的回收率在69.2%~103.2% 之间,相对标准偏差在0.98%~4.8% 之间,8 种有机磷最低检出浓度为0.4~4.1ng/L。

关键词: 固相微萃取, 气相色谱, 浓缩苹果汁, 有机磷农药, 残留

Abstract:

A method for the determination of eight organophosphorus pesticide residues (OPs) in apple juice concentrate by fiber solid phase microextraction (SPME) coupled with gas chromatography was developed. The extraction conditions were optimized. The average recoveries and relative standard deviations of the pesticides were 69.2% to 103.2% and 0.98% to 4.8% respectively. The detection limits of OPs were in the range of 0.4 ng/L to 4.1 ng/L. In conclusion, this method is rapid, accurate and easy for determining pesticides residues in apple juice concentrate.

Key words: solid phase microextraction (SPME), gas chromatography (GC), apple juice concentrate, organophosphorus pesticides, residues

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