Resumen
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 | Inglés |
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Páginas (desde-hasta) | 21-29 |
Número de páginas | 9 |
Publicación | Journal of Chromatography A |
Volumen | 673 |
N.º | 1 |
DOI | |
Estado | Publicada - 1 jul 1994 |