Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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The Determination of Methyl Isocyanate in the Workplace by Gas Chromatography with Flame Ionization Detector

GC/FID에 의한 작업환경중 메틸 이소시아네이트의 분석

  • Lee, Eun Jung (Environmental and Industrial Health laboratory, Department of Environmental engineering, College of Health Science, Yonsei University) ;
  • Yoo, Chul (Environmental and Industrial Health laboratory, Department of Environmental engineering, College of Health Science, Yonsei University) ;
  • Han, Young Sun (Environmental and Industrial Health laboratory, Department of Environmental engineering, College of Health Science, Yonsei University) ;
  • Cho, Young Bong (Environmental and Industrial Health laboratory, Department of Environmental engineering, College of Health Science, Yonsei University)
  • 이은정 (연세대학교 보건과학대학 환경공학과 산업.환경보건실험실) ;
  • 유철 (연세대학교 보건과학대학 환경공학과 산업.환경보건실험실) ;
  • 한영선 (연세대학교 보건과학대학 환경공학과 산업.환경보건실험실) ;
  • 조영봉 (연세대학교 보건과학대학 환경공학과 산업.환경보건실험실)
  • Received : 2001.09.21
  • Accepted : 2001.12.24
  • Published : 2001.12.30
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Abstract

The purpose of this study is the development of the simple and precise sampling and analysis method of methyl isocyanate(MIC) in the work place as their secondary aliphatic amine derivatives by gas chromatography with flame ionization detector. The urea derivatives are quantitatively and simultaneously derived from MIC with secondary aliphatic amines such as dipropylamine(DPA), dibutylamine(DBA), and dipentylamine (DAA) in methylene chloride. The method is based on sampling glass tube in XAD-2 resin which is coated with secondary aliphatic amines. The samples are desorbed by $2m{\ell}$ methylene chloride and analysed using gas chromatography with flame ionization detector(GC/FID). In the results, the detection limit of the overall procedure and reliable quantity are $0.020-0.027{\mu}g$($1.347-1.740{\mu}g/m^3$(0.529-0.684 ppb) based on a 15 L air volume) MIC per sample. The average desorption efficiencies are 97.96 - 101.23 %. The results of versus storage time are high and stable recovery rates.

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