Title of article
Binding of inorganic phosphate to dissolved metal humates
Author/Authors
Riggle، نويسنده , , Jeremy and von Wandruszka، نويسنده , , Ray، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2005
Pages
4
From page
372
To page
375
Abstract
A cobalt-wire electrode was used to determine the concentration of free phosphate (P) in solutions containing a series of metal humates (MHA). The results were used in Scatchard plots to determine the stability constants of the dissolved MHA–P complexes formed. The constants were found to be high, with log K values in the range 4.8–6.0. Solutions containing MHA–P complexes were found to be relatively inert to the addition of phosphate-precipitating cations, indicating that MHA has a solubilizing effect on P and may enhance its mobility in the environment.
Keywords
binding constant , Scatchard plot , Cobalt-wire electrode , Humic materials , Phosphate , Metal humates
Journal title
Talanta
Serial Year
2005
Journal title
Talanta
Record number
1648036
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