Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10561447 | Talanta | 2005 | 6 Pages |
Abstract
NIST reference material 8704 was extracted with 1 mol lâ1 NaOAc (adjusted to pH 5) to experimentally verify the applicability of the Langmuir isotherm approach and illustrate the deviations obtained for some metals using the linear isotherm approach. Of the seven metals measured (Cr, Co, Ni, Cu, Zn, Cd, and Ba) only for Cr and Cu severe discrepancies between both approaches were found, which could be traced back to non-linear isotherm behaviour. Moreover, the Langmuir isotherm approach showed that the above mentioned extractability artifact is even more serious than earlier assumed applying the linear isotherm approach.
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Authors
Johannes Teun van Elteren, Bojan BudiÄ,