J Korean Soc Environ Anal Search


Journal of the Korean Society for Environmental Analysis 2014;17(1):54-61.
An Internal Thermal Desorption-Gas Chromatography/ Mass Spectrometry Method for Analysis of Non-polar Organic Compounds in Ambient Aerosol Samples
시료주입부를 활용한 대기 유기에어로졸 분석법(TD-GC-MS) 개발
황은진1, 이지이1, 김용표2
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.
Key Words: Thermal Desorption, TD-GC-MS, PAHs, PM 10


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