Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Analysis of Carbonyl Compounds using DNPH Cartridge with LC-MS

DNPH cartridge/LC-MS 방법에 의한 카르보닐화합물 분석에 관한 연구

  • Cho Deok-Hee (Odor Analysis Team, Gyeonggi-Do Institute of Health and Environment) ;
  • Song Il-Seok (Odor Analysis Team, Gyeonggi-Do Institute of Health and Environment)
  • 조덕희 (경기도보건환경연구원 악취분석팀) ;
  • 송일석 (경기도보건환경연구원 악취분석팀)
  • Published : 2006.04.01
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Abstract

Several carbonyl compounds are important because of their irritant and toxic properties, mutagenicity and carcinogenicity. Therefore, they are regulated in korean odor emission standard. In this study, atmospheric pressure ionization-mass spectrometry(API-MS) is used for the analysis of carbonyl compounds after derivatization with 2, 4-dinitrophenylhydrazine (DNPH) and liquid chromatographic separation. In the negative ion mode, the $[M-H]^-$ pseudomolecular ions are most abundant for the carbonyls. Analytical parameters such as linearity, repeatability and minimum detection limit were evaluated. The linearities ($r^2$) for carbonyls were $0.9977{\sim}0.9999$ when analyte concentration ranges from $25\;to\;250{\mu}g/L$(n=6). The relative standard deviations (%RSD) for carbonyls were $0.55{\sim}3.51%$ for concentration of $100{\mu}g/L$(n=5). The minimum detection limit (MDL) was $1.88{\mu}g/L$(0.27 ppb) for i-valeraldehyde. It was shown that LC-MS method has a great potential for carbonyl compounds analysis.

Keywords

References

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