Use of multiparametric techniques to quantify the effects of naturally occurring ligands on the kinetics of Fe(II) oxidation.

摘要: A multifactorial experimental design was employed to quantify and rank the effects of a series ligands on rate Fe(II) (18 μM) oxidation in system containing chloride, sulfate, carbonate/bicarbonate, fluoride, natural organic matter (NOM) at pH 8.34 ± 0.13. Several factors combinations thereof correlated with 95% level confidence. Presented decreasing order significance, those were NOM, sulfate/fluoride interaction, fluoride. The center point repeated different matters substituted, including Nordic Reservoir fulvic humic acids; Suwannee River Pony Lake acid. Despite widely differing geographical origins these materials, their overall impact consistent, observed varying no more than factor 2 as function ...