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Article: New chemical speciation and bioavailability research from Delta State University described.
- Article from:
- Chemicals & Chemistry
- Article date:
- August 28, 2009
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"The lability of Cr, Ni, Pb, Fe, Mn, Cd and Cu in soils contaminated by scrap dumps in Warri, Nigeria was assessed by a sequential chemical extraction procedure (SCE) to fractionate the metals into MgCl2 extractable fraction, Na-acetate extractable fraction, hydroxylamine hydrochloride extractable fraction, HNO3/H2O2 extractable fraction and HF/aqua-regia extractable fraction. The results indicate that Pb is associated with HF/aqua-regia and hydroxylamine hydrochloride extracted fraction," scientists writing in the journal Chemical Speciation and Bioavailability report.
"Copper and chromium was associated with HNO3/H2O2 and HF/aqua-regia extracted fractions. Cd, ...