食品科学 ›› 2010, Vol. 31 ›› Issue (4 ): 190-193.doi: 10.7506/spkx1002-6300-201004043

• 分析检测 • 上一篇    下一篇

气相色谱双柱法测定果汁中多种有机磷类农药残留量

高 巍,卢 剑,武中平,耿 宁   

  1. 江苏省产品质量监督检验研究院
  • 收稿日期:2009-09-16 出版日期:2010-02-15 发布日期:2010-12-29
  • 基金资助:

    国家质量技术监督检验检疫总局科研项目(2005QK116);江苏省质量技术监督局科研项目(KJ051402)

Dual-column Gas Chromatographic Analysis of Organophosphorus Pesticide Multi-residues in Fruit Juice

GAO Wei,LU Jian,WU Zhong-ping,GENG Ning   

  1. Jiangsu Provincial Supervising and Testing Research Institute for Products Quality, Nanjing 210029, China
  • Received:2009-09-16 Online:2010-02-15 Published:2010-12-29

摘要:

采用气相色谱双柱法对果汁中多种有机磷类农药残留量进行测定。样品用丙酮提取后,经Carb/NH2 固相萃取小柱净化,用DB-1701、DB-35ms 毛细管气相色谱柱,火焰光度检测器,对果汁中多种有机磷类农药残留量的测定可取得满意的结果。该方法测定样品的平均加标回收率为75.23%~98.53%,相对标准偏差为0.97%~8.16%,果汁中有机磷类农药残留检出限为10~60μg/kg。

关键词: 果汁, 有机磷类农药, 残留量, 气相色谱双柱法, 火焰光度检测器

Abstract:

A dual-column gas chromatographic method was developed for the multi-residue determination of organophosphorus pesticides in fruit juice. Samples were extracted with acetone, and the resulting extract was cleaned up on Carb/NH2 SPE cartridge. The chromatographic separation was achieved on DB-1701 and DB-35ms capillary columns. Analytes were detected with FPD. The average recoveries of 6 replicates for analytes in blank samples spiked at 3 levels ranged between 75.23% and 98.53%, with relative standard deviations between 0.97% and 8.16%. The limits of detection were within the range of 10-60 μg/kg.

Key words: fruit juice, organophosphorus pesticides, multi-residues, dual column gas chromatography, FPD

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