Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils

J. L. Stroud; A. H. Rhodes; K. T. Semple; Z. Šimek; J. Hofman

doi:10.1016/j.envpol.2008.06.021

Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils

J. L. Stroud^*, A. H. Rhodes, K. T. Semple, Z. Šimek, J. Hofman

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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 ¹⁴C-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.

Original language	English
Pages (from-to)	664-670
Number of pages	7
Journal	Environmental Pollution
Volume	156
Issue number	3
DOIs	https://doi.org/10.1016/j.envpol.2008.06.021
Publication status	Print publication - Dec 2008
Externally published	Yes

Keywords

Bioaccessibility
Desorption
Phenanthrene
Supercritical fluid extraction

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10.1016/j.envpol.2008.06.021

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title = "Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils",

abstract = "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 14C-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.",

keywords = "Bioaccessibility, Desorption, Phenanthrene, Supercritical fluid extraction",

author = "Stroud, {J. L.} and Rhodes, {A. H.} and Semple, {K. T.} and Z. {\v S}imek and J. Hofman",

year = "2008",

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volume = "156",

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T1 - Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils

AU - Stroud, J. L.

AU - Rhodes, A. H.

AU - Semple, K. T.

AU - Šimek, 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 14C-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.

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 14C-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.

KW - Bioaccessibility

KW - Desorption

KW - Phenanthrene

KW - Supercritical fluid extraction

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DO - 10.1016/j.envpol.2008.06.021

M3 - Article

C2 - 18653263

AN - SCOPUS:55649114181

SN - 0269-7491

VL - 156

SP - 664

EP - 670

JO - Environmental Pollution

JF - Environmental Pollution

IS - 3

ER -

Using supercritical fluid extraction to measure the desorption and bioaccessibility of phenanthrene in soils

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Keywords

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