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Journal of Agriculture ›› 2016, Vol. 6 ›› Issue (1): 83-87.doi: 10.11923/j.issn.2095-4050.cjas15060012

Special Issue: 植物保护

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Determination of Fipronil Pesticide Residues in Orange by Gas Chromatographic Method

  

  • Received:2015-06-11 Revised:2015-07-31 Accepted:2015-08-25 Online:2016-01-29 Published:2016-01-29

Abstract: In order to popularize the detection arguments of residual pesticides, an analytical method for the determination of fipronil and other residues in orange by gas chromatography was developed. The samples were extracted with acetonitrile, further cleaned up by graphite carbon amino columns, and detected by gas chromatography with electron capture detector (GC ECD). The results showed that the relative standard deviation of repeatability test to measure fipronil and other pesticide residues was 2.36% to 5.68% under this method, the limit of quantification was 0.003-0.04 mg/kg and the limit of detection was 0.001-0.002 mg/kg. There were four residues which had a good linearity in the range of 0.05-2.0 mg/L with the R value greater than 0.990. The method was feasible and accurate in the detection of fipronil and other residues in orange, and the result was in conformity with the national level.