Possible Interaction: Antimony and Iron, Dietary

“Therefore, this study provides a new possibility that iron can potentiate parasite death induced by metalloids like arsenic and antimony.”

“This hypothesis is confirmed with regard to elements the values of which decrease significantly with the distance from the sewage emission point, e.g. Cr, Fe and Zn, and a little less for Ag, Ba, Ce, Rb, Sb , Sc, Se, Sm and Th.”

“These results are consistent with abiotic reduction of Sb(V) by biogenic sulfide and reveal a substantial influence of Fe oxides on the speciation of Sb(III), which illustrates the tight coupling of Sb speciation with the biogeochemical cycling of S and Fe.”

“Bacterial community shift analyses showed that the addition of S or Fe species to the media significantly changed the bacterial communities driven by antimony stress.”

“The X-ray photoelectron spectroscopy (XPS) and in situ diffused reflectance infrared Fourier … (in situ DRIFTS) of NOx adsorption results suggested that strong electron interactions between Fe … Sb in Fe-O-Sb species existed and electrons of Sb could … to Fe through the 2Fe3+ + Sb3+ ↔ 2Fe2+ + Sb5+ redox cycle.”

“X-ray absorption revealed that partial substitution of Fe by Sb leads to a series of changes in the local environment of the iron atom, such as a decrease in the iron oxidation state and increase in the oxygen coordination number.”

“Micro X-ray fluorescence (μ-XRF) analysis suggested the association of Sb and Fe , and electron shuttles such as anthraquinone-2,6-disulfonic disodium salt (AQDS) markedly enhanced the Sb release due to its ability to facilitate Fe mineral dissolution.”

“From the immobilization mechanisms described in the literature, it could be concluded that both Ca and Fe play an important role in the immobilization of Sb in WtE BA.”

“In the presence of Fe plaque, Sb uptake into rice roots was significantly reduced, especially for Sb(III).”

“The EXAFS simulation indicated that the difference is due to the larger coordination number of the Fe atom to the Sb atom in the coprecipitation samples, indicating a structural incorporation (heterovalent substitution) of Sb(V) into ferrihydrite and goethite.”