FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (4): 338-340.

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Determination of Hexanoic Acid 2-(diethylamino) Ethyl Ester Residue in Bok-choy with Gas Chromatography-Mass Spectrometry

 XIE  Liu-Qing, JIANG  Shu-Ren, XU  Peng-Jun, ZHANG  Hong-Yan, ZHAO  Yu-Zhen, YANG  Wei-Hua   

  1. 1.College of Science, China Agricultural University; 2. College of Plant Protection, Qingdao Agricultural College
  • Online:2008-04-15 Published:2011-08-24

Abstract: A method for determination of hexanoic acid 2-(diethylamino) ethyl ester residue in bok-choy has been developed. The pesticide was extracted with acetone from the sample, and the liquid-liquid extraction clean-up process with dichloromethane was applied. The pesticide was finally determined by gas chromatography-mass spectrometry in selective ion monitor (SIM). The average recovery rates at various fortification levels (0. 01, 0. 05 and 0.1 mg/kg) range between 85 % and 99 % and the relative standard deviations are less than 10% in all cases.

Key words: gas chromatography-mass spectrometry, hexanoic acid 2-(diethylamino) ethyl ester, bok-choy