A review of techniques for the determination of polycyclic aromatic hydrocarbons in air |
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Authors: | Sudhir Kumar PandeyKi-Hyun Kim |
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Institution: | Atmospheric Environment Laboratory, Dept. of Environment & Energy, Sejong University, 98 Goon Ja Dong, Gwang Jin Goo, Seoul 143-747, Republic of Korea; Analytical Science Division, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK |
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Abstract: | We provide an extensive review of the common methodologies employed in the analysis of airborne polycyclic aromatic hydrocarbons (PAHs). The review focuses on gas-chromatography-based approaches, in the light of their universal application with excellent separation, resolution, and sensitivity.We first describe collection methods for airborne PAHs in the gas and particle phases. We then evaluate the efficiency of extraction techniques employed for separating target PAHs from sampling media, using conventional solvent-based and emerging thermal-desorption approaches.We also describe commonly employed analytical methods with respect to their applicability to PAHs in gas and particle phases, collected from diverse environmental settings. As an essential part of basic quality assurance, we examine each method with special emphasis on key parameters (e.g., limit of detection and reproducibility).Finally, we address the likely directions of methodological developments, their limitations, and the future prospects for PAH analysis. |
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Keywords: | Airborne polycyclic aromatic hydrocarbon Analytical discrepancy Analytical methodology Extraction Gas chromatography Limit of detection (LOD) Polycyclic aromatic hydrocarbon (PAH) Reproducibility Solvent-free Thermal desorption |
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