Journal
ENVIRONMENTAL POLLUTION
Volume 152, Issue 1, Pages 60-72Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2007.05.022
Keywords
physiologically-based extraction test (PBET); metals; oral bioaccessibility; ICP-MS; plants
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The oral bioaccessibility of metals in vegetable plants grown on contaminated soil was assessed. This was done using the physiologically-based extraction test (PBET) to simulate the human digestion of plant material. A range of vegetable plants, i.e. carrot, lettuce, radish and spinach, were grown on metal contaminated soil. After reaching maturity the plants were harvested and analysed for their total metal content (i.e. Cr, Cd, Cu. Fe. Mn, Mo, Ni, Pb and Zn) by inductively coupled plasma-mass spectrometry (ICP-MS). The plant samples were then subsequently extracted using an in vitro gastrointestinal approach or PBET to assess the likelihood of oral bioaccessibility if the material was consumed by humans. (c) 2007 Elsevier Ltd. All rights reserved.
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