Bioaccessibility of lead sequestered to corundum and ferrihydrite in a simulated gastrointestinal system.

@article{Beak2006BioaccessibilityOL,
  title={Bioaccessibility of lead sequestered to corundum and ferrihydrite in a simulated gastrointestinal system.},
  author={Douglas G. Beak and Nicholas Thomas Basta and Kirk G Scheckel and Samuel J. Traina},
  journal={Journal of environmental quality},
  year={2006},
  volume={35 6},
  pages={
          2075-83
        }
}
Lead (Pb) sorption onto oxide surfaces in soils may strongly influence the risk posed from incidental ingestion of Pb-contaminated soil. Lead was sorbed to model oxide minerals of corundum (alpha-Al(2)O(3)) and ferrihydrite (Fe(5)HO(8).4H(2)O). The Pb-sorbed minerals were placed in a simulated gastrointestinal tract (in vitro) to simulate ingestion of Pb-contaminated soil. The changes in Pb speciation were determined using extended X-ray absorption fine structure (EXAFS) and X-ray absorption… CONTINUE READING

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