Investigation of extraction methodologies for quantitative determination of polycyclic aromatic hydrocarbons in sediments

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2011

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Topal, Tansel

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The extraction procedures for the determination of polycyclic aromatic hydrocarbons (PAH) concentrations in sediment samples had been developed by using GC-FID and GC-MS. The optimized methods were soxhlet extraction, ultrasonic bath extraction and solid phase micro extraction (SPME). In order to search out the main factors affecting extraction efficiencies of the methods, factorial design was used. The best extraction method was chosen and optimum values for main factors were selected for the development of the extraction method for PAH determination in sediment samples. The accuracy of the method was verified by analyzing NIST SRM 1597 (complex mixture of polycyclic aromatic hydrocarbons from coal tar). The selectivitiy and sensitivity obtained were quite adequate for the determination of PAHs in sediment sample. The best extraction and analysis methods were then applied to determine 16 PAHs in sea sediments from Ölüdeniz Lagoon, Muğla, Turkey and 19 PAHs in İkizcetepeler Dam Lake, Balıkesir, Turkey sediments to illustrate the capability of the selected extraction and analysis method to detect PAHs and to determine the status of the contamination.

Subject Keywords

Hydrocarbons, Polycyclic compounds

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http://etd.lib.metu.edu.tr/upload/12612913/index.pdf
https://hdl.handle.net/11511/20665

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

T. Topal, “Investigation of extraction methodologies for quantitative determination of polycyclic aromatic hydrocarbons in sediments,” Ph.D. - Doctoral Program, Middle East Technical University, 2011.