Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Construction and Evaluation of Cryogenic Preconcentration System for Analysis of VOC with ppb Level in the Air

대기 중의 ppb 농도의 VOC의 분석을 위한 저온농축장치의 제작과 성능평가

  • Jeon, Sun Joo (Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science) ;
  • Kim, Byung Joo (Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science) ;
  • Kim, Jin Seog (Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science) ;
  • Heo, Gwi Suk (Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science)
  • 전선주 (한국표준과학연구원 물질량표준부) ;
  • 허귀석 (한국표준과학연구원 물질량표준부) ;
  • 김병주 (한국표준과학연구원 물질량표준부) ;
  • 김진석 (한국표준과학연구원 물질량표준부)
  • Received : 1999.04.14
  • Published : 1999.08.25
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Abstract

Homemade cryogenic preconcentration system is constructed to preconcentrate the VOCs in the ambient air collected in canister. Homemade preconcentrator equipped with GC-MS was used for analysis of air sample containing VOCs at ppb level identified in EPA TO-14 method. The system was evaluated for analytical performance by comparison with the results of adsorption tube method widely used in the past, and shows good agreement for concentrations of benzene, toluene, ethylbenzene, and xylenes.

본 연구에서는 canister에 채집한 대기시료 중의 VOC 성분을 농축하기 위해 home-made 저온농축장치를 제작하였다. 제작한 저온농축장치와 GC-MS 분석장치를 이용하여 대기 시료 중에 ppb 농도로 존재하는 EPA의 TO-14 법에서 규정한 성분들을 정량하였다. 제작한 homemade 농축장치에 의한 분석의 결과를 종전에 사용해 오던 흡착관법의 결과와 비교함으로써 제작한 system의 성능을 평가하였고 그 결과 benzene, toluene, ethylbenzene 및 xylene류의 농도가 잘 일치하였다.

Keywords

References

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