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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

  • P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

논문 상세

    Determination of Grayanotoxin I and Grayanotoxin III in mad honey from Nepal using liquid chromatography-tandem mass spectrometry

    분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    2022, v.35 no.2, pp.82-91
    https://doi.org/10.5806/AST.2022.35.2.82
    Su Youn Ahn (National Forensic Service)
    Suncheun Kim (National Forensic Service)
    Hwangeui Cho (School of Pharmacy, Jeonbuk National University)
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    • 조회수

    Abstract

    Grayanotoxin-contaminated honey exhibits toxicity. In this study, a reliable and sensitive liquidchromatography– tandem-mass-spectrometric method (LC–MS/MS) was developed and validated for the quantitation of grayanotoxin I and grayanotoxin III in honey. The grayanotoxins were extracted from honey via solid phase extraction and separated on a biphenyl column with a mobile phase consisting of 0.5 % acetic acid in water and methanol. Mass spectrometric detection was performed in the multiple-reaction monitoring mode with positive electrospray ionization. The calibration curve covered the range 0.25 to 100 μg/g. The intra- and interday deviations were less than 10.6 %, and the accuracy was between 94.3 and 114.0 %. The validated method was successfully applied to the determination of grayanotoxins in mad honey from Nepal. The concentrations of grayanotoxin I and grayanotoxin III in 33 out of 60 mad honey samples were 0.75 – 64.86 μg/g and 0.25 – 63.99 μg/g, respectively. The method established herein would help in preventing and confirming grayanotoxin poisoning.

    keywords
    grayanotoxin I, grayanotoxin III, LC-MS/MS, mad honey, solid phase extraction


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