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首页> 外文期刊>international journal of environmental analytical chemistry >Determination of Polycyclic Aromatic Hydrocarbons in Marine Sediments, using Solvent Extraction, Thin-Layer Chromatography and SpectrofIuorimetry
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Determination of Polycyclic Aromatic Hydrocarbons in Marine Sediments, using Solvent Extraction, Thin-Layer Chromatography and SpectrofIuorimetry

机译：Determination of Polycyclic Aromatic Hydrocarbons in Marine Sediments, using Solvent Extraction, Thin-Layer Chromatography and SpectrofIuorimetry

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Polycyclic aromatic hydrocaroons (PAH) are present in bottom sediments of rivers. estuaries and coastal waters. Few analyses of sediments for PAH have been reported previously, and they have generally determined benzoapyrene (BaP) only. The method described here was developed and used to determine BaP and perylene quantitatively, and to identify several other PAH in a range of sediments from south-east Australia. A sequence of liquid-liquid extraction using cyclohexane and dimethylsulphoxide, and two stages of thin-layer chrornatography, was used for purification and separation of individual PAH which were identified and determined by spectrofluorimetry. The minimum concentrations detectable using this method were 2.5#x3BC;g/kg for BaP and 1.5#x3BC;g/kg for perylene starting with a 30g sample of dried sediment. At the 500 #x3BC;g/kg level both PAHs were determined with a coefficient of variation of 5-7.

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