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Analysis of Carbonyl Compounds using DNPH Cartridge with LC-MS  

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)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.22, no.2, 2006 , pp. 201-208 More about this Journal
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
Carbonyl compounds; LC-MS; DNPH cartridge; Analysis method;
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Times Cited By KSCI : 1  (Citation Analysis)
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