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Quantitative analysis of 3-MCPD in water using LC-MS

LC-MS를 이용한 수용액중의 3-MCPD 정량

  • Park, Gyo-Beom (Center for Chemical Analysis, Korea Research Institute of Chemical Technology) ;
  • Kim, Yong-Hwa (Toxicology Research Division, Korea Institute of Toxicology) ;
  • Kim, Jin-Sung (Toxicology Research Division, Korea Institute of Toxicology) ;
  • Jeong, Ja-Young (Department of Toxicologic Patholog, National Institute of Toxicological Research, Korea Food and Drug Administration) ;
  • Kim, Choong-Yong (Toxicology Research Division, Korea Institute of Toxicology) ;
  • Lee, Sueg-Geun (Center for Chemical Analysis, Korea Research Institute of Chemical Technology)
  • 박교범 (한국화학연구원 화학분석센터) ;
  • 김용화 (안전성평가연구소 독성연구부) ;
  • 김진성 (안전성평가연구소 독성연구부) ;
  • 정자영 (식품의약품안전청 국립독성연구원 독성병리과) ;
  • 김충용 (안전성평가연구소 독성연구부) ;
  • 이석근 (한국화학연구원 화학분석센터)
  • Received : 2007.04.02
  • Accepted : 2007.04.23
  • Published : 2007.06.28

Abstract

The analysis method of 3-Monochloropropane-1,2-diol (3-MCPD) compound in water was developed using liquid chromatography with mass spectrometric detection. Aqueous solution was controlled in strong basic condition with sodium hydroxide, and then $25{\mu}L$ of benzoyl chloride was added to the solution for the derivatization of 3-MCPD. The derivative was extracted using pentane and analyzed by the selected ion monitoring (SIM) method of LC-MS. The results of analyses showed that the calibration curves was in the range of 1.0 to $100{\mu}g/mL$ with a good linearity (correlation coefficient of $r^2=0.992$) and limit of detection was below $0.01{\mu}g/mL$. The recoveries of this analysis method by LC-MS were 92.3-98.0 %.

수용액상에 존재하는 3-monochloropropane-1,2-diol (3-MCPD)의 LC-MS를 이용한 분석방법을 개발하였다. 수용액 시료에 수산화나트륨 용액을 첨가하여 강알칼리 상태를 유지시킨 후, 3-MCPD의 유도체화를 위하여 benzoyl chloride $25{\mu}L$을 넣어 직접 반응시켰다. 반응 후 유도체를 pentane으로 추출하여 LC-MS의 selected ion monitoring (SIM) 법으로 정량하였다. 분석결과 검량선은 $1.0-100{\mu}g/mL$ 농도범위에서 $r^2=0.992$의 상관관계 계수를 갖는 좋은 직선성을 나타내었으며, 검출한계는 $0.01{\mu}g/mL$ 이하였다. LC-MS에 의한 분석방법의 회수율은 92.3-98.0%이었다.

Keywords

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