Resum
Different extraction and clean-up methods for the determination of polycyclic aromatic hydrocarbons (PAHs) in sewage sludge-amended soil were investigated. Soxhlet plus saponification extraction and silica gel clean-up provided the best results. HPLC with a programmable fluorescence detector performed accurate identification and quantification of PAHs. The initial PAH concentrations in sewage sludge-amended soil ranged from 8 ng/g for benzo[a]fluoranthene to 93 ng/g for phenanthrene, with a total PAH concentration of 417 ng/g. The weathering of PAHs in sludged soil was monitored for a 141-day period. The results indicated that low-molecular-mass PAHs were susceptible to abiotic and biotic loss processes.
Idioma original | Anglès |
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Pàgines (de-a) | 21-29 |
Nombre de pàgines | 9 |
Revista | Journal of Chromatography A |
Volum | 673 |
Número | 1 |
DOIs | |
Estat de la publicació | Publicada - 1 de jul. 1994 |