Results 251 to 260 of about 499,152 (305)

Effectiveness of mHealth-Based Nutritional Interventions on Iron Status of Pregnant Women: Systematic Review of Randomized Controlled Trials.

JMIR Mhealth Uhealth
Belay SA, Bezabih AM, Petegem WV, Matthys C.   +3 more
europepmc   +1 more source

Solvent Extraction of Iron with Chloroform as Acetylacetonate

Solvent Extraction of Iron with Chloroform as Acetylacetonate
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Development of a sequential extraction procedure for iron: implications for iron partitioning in continentally derived particulates

Chemical Geology, 2005
Abstract The development of a sequential extraction procedure for iron in modern and ancient sediments is presented. The scheme recognizes seven operationally derived iron pools: (1) carbonate associated Fe (Fe carb ), including siderite and ankerite; (2) easily reducible oxides (Fe ox1 ), including ferrihydrite and lepidocrocite; (3) reducible ...
Simon W Poulton, Don Canfield
exaly   +4 more sources

Extraction studies on iron

Journal of Radioanalytical Chemistry, 1977
The extraction of Fe(III) and Fe(II) from various aqueous acidic solutions, with nitrobenzene, Amberlite LA-2, TBP and HDEHP is described. Conditions are given for the separation of Fe(III) from Fe(II). The extraction and separation of Fe(III) and Fe(II) is most adequate from HCl solutions, using the four solvents.
A. Haggag, W. Sanad, A. Alian, N. Tadroes   +3 more
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Extraction of iron(III) dithizonate

Analytica Chimica Acta, 1975
Abstract The extraction of iron(III) with dithizone in the presence of different anions, was studied. The complex cation Fe(HDz) 2 + formed is extracted in the presence of sodium acetate and tetraphenylborate or capric acid as an ion associate, (Fe(HDz) 2 ) + X - , where X - is the anion of the indicated compounds.
Yu.A. Zolotov, O.A. Kiseleva, N.V. Shakhova, V.I. Lebedev   +3 more
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Prediction of reducible soil iron content from iron extraction data

Biogeochemistry, 2003
Soils contain various iron compounds that differ in solubility, reducibility and extractability. Moreover, the contribution of the various iron compounds to total iron (Fe) and total Fe concentrations differs highly among soils. As a result, the total reducible Fe content can also differ among soils, and so does the dynamics of iron reduction.
van Bodegom, P.M., van Reeven, J., Denier van der Gon, H.A.C.   +2 more
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Chemical stability of aluminium–iron- and iron-pillared montmorillonite: extraction and reduction of iron

J. Chem. Soc., Chem. Commun., 1994
A substantial amount of iron(III) from Al/Fe- and Fe-pillars is (i) extracted by hydrochloric acid, ammonium oxalate at pH 3 and dithionite and (ii) reduced to FeII by hydrazine vapour or liquid or dithionite, while only trace extraction and reduction was found for dithionite–citrate–bicarbonate (DCB).
Peter Komadel, David H. Doff, Joseph W. Stucki   +2 more
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Extractable iron in experimental hematomas

Zeitschrift f�r Rechtsmedizin, 1987
The extractable iron and total iron were determined in experimental, subcutaneous hematomas (5 ml blood) of rats after different periods of vital time. The extractable iron was determined from homogenate extract obtained after 24-h incubation with concentrated HCl diluted 1:3 and protein precipitation. For the determination of total iron, the specimens
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Determination of iron chlorosis with extractable iron analysis in peach leaves

Journal of Plant Nutrition, 1995
Abstract Iron (Fe) though indispensable for the biosynthesis of chlorophyll, but its total content in the plant was not associated with the occurrence of chlorosis. Iron, which is the ferrous‐iron (Fe2+) form—termed “active”; Fe— and extracted with weak acids and some chelating agents, has been closely related to Fe chlorosis.
A. T. Köseoğlu, V. Açikgöz
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Iron extractability from iron-humate complexes by a siderophore and a mixture of organic acids

Canadian Journal of Soil Science, 1993
Two well-characterized humic acids (HA), extracted from a volcanic soil and a leonhardite, were used to synthesize insoluble Fe complexes. The complexes were treated at different concentrations and contact times with a siderophore (deferoxamine mesylate) and a mixture of simple organic acids (citric, oxalic, tartaric, and ketoglutaric acids) naturally
A. PICCOLO, PIETRAMELLARA, GIACOMO, G. CELANO   +2 more
openaire   +4 more sources