A Screening Method for Polycyclic Aromatic Hydrocarbons Determination in Sediments by Headspace SPME with GC–FID |
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Authors: | Zuazagoitia Daniel Milln Esmeralda Garcia-Arrona Rosa |
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Institution: | 1.Department of Applied Chemistry, Faculty of Chemistry, Universidad del País Vasco, Apdo. 1072, 20080, San Sebastián, Spain ; |
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Abstract: | A screening method for polycyclic aromatic hydrocarbons (PAHs) determination in sediment using headspace solid phase microextraction (HS-SPME) with gas chromatography–flame ionization detection was developed. In order to obtain the convenient experimental conditions for HS-SPME extraction an experimental design with two steps was done. 0.2 g of sediment and 85 µm polyacrylate fibre, 80 °C and 120 min were the chosen extractions conditions. The limit of detection (LOD) was from 0.8 ng g−1 (fluoranthene) to 8 ng g−1 (chrysene). The relative standard deviation (RSD) was less than 7.0%. Determination of PAHs in NRC–CNRC–HS–3B reference marine sediment showed good agreement with the certified values. The method was applied in the analysis of ten river and estuary surface sediments from Gipuzkoa (North Spain). PAHs total concentration ranged from 400 to 5,500 ng g−1. |
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