Multi-residue method development of 8 benzoylurea insecticides in mandarin and apple using high performance liquid chromatography and liquid chromatography-tandem mass spectrometry
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  • 作者:Jong-Hwan Kim (1)
    Jong-Su Seo (2)
    Joon-Kwan Moon (3)
    Jeong-Han Kim (2)
  • 关键词:benzoylurea insecticides ; liquid chromatographytandem mass spectrometry( ; ) ; maximum residue limits ; multiresidue
  • 刊名:Journal of the Korean Society for Applied Biological Chemistry
  • 出版年:2013
  • 出版时间:February 2013
  • 年:2013
  • 卷:56
  • 期:1
  • 页码:47-54
  • 全文大小:262KB
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  • 作者单位:Jong-Hwan Kim (1)
    Jong-Su Seo (2)
    Joon-Kwan Moon (3)
    Jeong-Han Kim (2)

    1. Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-742, Republic of Korea
    2. Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, 660-844, Republic of Korea
    3. School of Plant Life and Environmental Sciences, Hankyong National University, Ansung, 456-749, Republic of Korea
  • ISSN:2234-344X
文摘
Multi-residue method of eight benzoylurea insecticdes (8BUs; diflubenzuron, triflumuron, hexaflumuron, teflubenzuron, novaluron, lufenuron, flufenoxuron, and chlorfluazuron) in apple and mandarin were developed with high performance liquid chromatography and liquid chromatography-tandem Mass spectrometry. Using multiresidue standard solutions, extraction, partition, and clean-up procedures have been established. Extraction with acetone and partition with n-hexane gave reasonable recovery of more than 90%. Clean-up with florisil-glass column using acetone/n-hexane as eluting solvents resulted in good efficiency of higher than 94%. By employing the established analytical method, recovery test of 8BUs in mandarin and apple was conducted to give recovery of 80-10%, which satisfies the Korea Food & Drug Administration criteria. The method limit of quantitation (MLOQ, 0.02 mg/kg) was lower than 1/2 of maximum residue limits of crops. Excellent sensitivity and selectivity were obtained with liquid chromatography tandem mass spectrometry (LC-MS/MS)-Electrospray ionization(-) even in the samples with no clean-up, suggesting LC-MS/MS can be used for the fast multi-residue method of 8 benzoylurea insecticides in mandarin and apple.

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