시료주입부를 활용한 대기 유기에어로졸 분석법(TD-GC-MS) 개발
An Internal Thermal Desorption-Gas Chromatography/ Mass Spectrometry Method for Analysis of Non-polar Organic Compounds in Ambient Aerosol Samples
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참고문헌
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초록
Organic aerosol (OA) is one of the major constituents of particulate matter (PM) in the atmosphere, understanding the chemical properties of OA is essential in order to evaluate the impact of PM to human and climate change. OA is comprised of various individual compounds, and the traditional approach analysis of each organic compound in the aerosol is the GC-MS analysis method by organic solvent extraction(SE method). In the SE method, solvent extraction and evaporation steps are labor intensive and time consuming. In addition, the use of large quantities of PM samples produces the low time-resolution results. objective of this study is to establish an efficient organic compound extraction technique using the thermal desorptiontechnique (TD method). In the proposed internal TD technique, the injection port of GC-MS utilizedas a TD system and we call this as internal TD. Performance of the internal TD-GC-MS is evaluated polycyclic aromatic hydrocarbons (PAHs) in standards and various ambient PM 10 samples, and we present results of replicate analysis for 17 PAHs to confirm accuracy and precision of this technique.
Abstract
Organic aerosol (OA) is one of the major constituents of particulate matter (PM) in the atmosphere, understanding the chemical properties of OA is essential in order to evaluate the impact of PM to human and climate change. OA is comprised of various individual compounds, and the traditional approach analysis of each organic compound in the aerosol is the GC-MS analysis method by organic solvent extraction(SE method). In the SE method, solvent extraction and evaporation steps are labor intensive and time consuming. In addition, the use of large quantities of PM samples produces the low time-resolution results. objective of this study is to establish an efficient organic compound extraction technique using the thermal desorptiontechnique (TD method). In the proposed internal TD technique, the injection port of GC-MS utilizedas a TD system and we call this as internal TD. Performance of the internal TD-GC-MS is evaluated polycyclic aromatic hydrocarbons (PAHs) in standards and various ambient PM 10 samples, and we present results of replicate analysis for 17 PAHs to confirm accuracy and precision of this technique.
참고문헌 (10)
- M. Kanakidou, "Organic aerosol and global climate modelling : A review", Atmospheric Chemistry and Physics, 5, pp.1053~1123 (2005)
- S. S. H. Ho, "Precautions for in-injection port thermal desorption-gas chromatography", mass spectrometry (TD-GC, Atmospheric Environment, pp.2011, 45[DOI]
- J. C. Chow, "The application of thermal methods for determining chemical composition of carbonaceous aerosols : A review", Journal of Environmental Science and Health-Part A Toxic, 2007, pp.42, 1521~1541
- J. Y. Lee, "Characteristics of the ambient particulate PAHs at Seoul, a mega city of Northeast Asia in comparison with the characteristics of a background site", ATMOSPHERIC RESEARCH, 99(1), pp.50~56 (2011), ELSEVIER SCIENCE INC
- J. Z. Yu, "Nonpolar organic compounds in fine particles : quantification by thermal desorption-GC", MS and evidence for their significant oxidation in ambient aerosols in Hong Kong, 2011, pp.401, 3125~3139
- M. B. Yunker, "PAHs in the Fraser River basin: a critical appraisal of PAH ratios as indicators of PAH source and composition", Organic Geochemistry, 33, pp.489~515 (2002)
- Seinfeld, J. H., "Organic atmospheric particulate material", Annual Review of Physical Chemistry, 54, pp.121~140 (2003)
- Hays, M. D., "Developments in direct thermal extraction-GC", MS of fine aerosols, 2007, pp.26, 88~102
- Ho, S. S. H., "-injection port thermal desorption and subsequent gas chromatography-mass spectrometric analysis of polycyclic aromatic hydrocarbons and n-alkanes in atmospheric aerosol samples", Journal of Chromatography A, 1059, pp.121~129 (2004)
- Ho, S. S. H, "Evaluation of an in-injection port thermal desorption-gas chromatography", mass spectrometry method for analysis of non-polar organic compounds in ambient aerosol samples, 2008, pp.1200, 217~227