FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (10): 279-282.doi: 10.7506/spkx1002-6630-201010061

• Analysis & Detection • Previous Articles     Next Articles

Gas Chromatographic Determination of Fipronil Residue in Tea

FU Xiao-fang,LIN Yan-fei,LI Jing,ZHAO Xiao-ya,WANG Peng   

  1. Hubei Entry-Exit Inspection and Quarantine Bureau, Wuhan 430050, China
  • Received:2009-09-07 Revised:2010-01-04 Online:2010-05-15 Published:2010-12-29
  • Contact: FU Xiao-fang


An analytical method based on gas chromatography (GC) was proposed for the determination of fipronil residue in tea. Samples were extracted with acetontrile and cleaned up on a Florisil (containing graphitized carbon black) column prior to HPLC analysis with μECD detection. The minimum detectable amount of fipronil was 2 × 10-12 g and the minimum detectable concentration of fipronil in tea was 2μg/kg. Average recoveries of 3 replicates for fipronil in a real sample spiked at 5 levels were within the range of 74.0%-92.0%, with a RSD ranging from 3.26% to 10.55%. The accuracy and sensitivity of the developed method both meet the requirements of pesticide residue analysis.

Key words: fipronil, gas chromatography, tea, solid-phase extraction

CLC Number: