Binding characteristics and dissociation kinetics for iron(II) complexes with seawater extractable organic matter and humic substances in a compost.
نویسندگان
چکیده
A steel-slag/compost fertilizer can be useful in supplying complex Fe(II) species to barren coastal regions. Seawater extractable organic matter (SWEOM) was examined for use as a novel chelator of Fe(II) in the compost. The dissociation kinetics for Fe(II)-SWEOM were evaluated, based on the rate of ligand-exchange with ortho-phenanthroline. The ΔH(‡) for the Fe(II)-SWEOM (19 kJ mol(-1)) was significantly smaller than the corresponding values for Fe(II) complexes with humic substances (27 kJ mol(-1)), suggesting that the Fe(II)-SWEOM is kinetically less stable.
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ورودعنوان ژورنال:
- Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
دوره 28 8 شماره
صفحات -
تاریخ انتشار 2012