Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils.
AU - Stroud, Jacqueline
AU - Rhodes, Angela
AU - Semple, Kirk T.
AU - Simek, Z.
AU - Hofman, J.
PY - 2008/12
Y1 - 2008/12
N2 - The aim of this paper was to measure the changing desorbable fraction and bioaccessibility of phenanthrene in two different soils with increasing soil-phenanthrene contact time using supercritical fluid extractions (SFE). Both soils were spiked with 100 mg kg(-1) phenanthrene and aged for 28 d. Desorption profiles were measured every 7 d using selective SFE conditions and the results were compared to C-14-phenanthrene mineralisation assays. Selective SFE showed significant differences in the rates and extents of desorption in the two soils, likely to be due to different organic matter composition. Post-extraction fitting of data yielded consistent SFE extraction times within ageing soils for bioaccessibility prediction. (C) 2008 Elsevier Ltd. All rights reserved.
AB - The aim of this paper was to measure the changing desorbable fraction and bioaccessibility of phenanthrene in two different soils with increasing soil-phenanthrene contact time using supercritical fluid extractions (SFE). Both soils were spiked with 100 mg kg(-1) phenanthrene and aged for 28 d. Desorption profiles were measured every 7 d using selective SFE conditions and the results were compared to C-14-phenanthrene mineralisation assays. Selective SFE showed significant differences in the rates and extents of desorption in the two soils, likely to be due to different organic matter composition. Post-extraction fitting of data yielded consistent SFE extraction times within ageing soils for bioaccessibility prediction. (C) 2008 Elsevier Ltd. All rights reserved.
KW - Supercritical fluid extraction
KW - Phenanthrene
KW - Bioaccessibility
KW - Desorption
U2 - 10.1016/j.envpol.2008.06.021
DO - 10.1016/j.envpol.2008.06.021
M3 - Journal article
VL - 156
SP - 664
EP - 670
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
IS - 3
ER -