Iron speciation in aerosol dust influences iron bioavailability over glacial-interglacial timescales
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چکیده
منابع مشابه
Glacial - Interglacial Co 2 Change : the Iron Hypothesis
Several explanations for the 200 to 280 ppm glacial/interglacial change in atmospheric CO 2 concentrations deal with variations in southern ocean phytoplankton productivity and the related use or nonuse of major plant nutrients. An hypothesis is presented herein in which arguments are made that new productivity in today's southern ocean (7.4 X 1013 g yr -1) is limited by iron deficiency, and he...
متن کاملTitle : Iron bioavailability from commercially available iron
Affiliations: Tatiana Christides, Department of Life and Sports Science, Faculty of Engineering & Science, University of Greenwich, United Kingdom David Wray, Department of Pharmaceutical, Chemical & Environmental Sciences, Faculty of Engineering & Science, University of Greenwich, United Kingdom Richard McBride, Department of Life and Sports Science, Faculty of Engineering & Science, Universit...
متن کاملIron content, bioavailability & factors affecting iron status of Indians.
Repeated surveys have shown that the magnitude of nutritional anaemia is of public health concern in India. Though reduced intake of iron is a major aetiological factor, low intake or an imbalance in the consumption of other haematopoietic nutrients, their utilization; increased nutrient loss and/or demand also contribute to nutritional anaemia. In India, cereals and millets form the bulk of th...
متن کاملBioavailability of iron from micro-encapsulated iron sprinkle supplement.
To improve the iron status of infants an effort was made to increase the iron content of complementary foods by adding 12.5 mg of elemental iron to the meal in the form of micro-encapsulated ferrous fumarate coated with a lipid. The contents of the packet were sprinkled directly on to infant foods. Relative absorption of iron from this supplement was determined in a prospective randomized study...
متن کاملSelective Speciation of Ferric Iron by a New Heterocyclic Ligand
The synthesis and analytical applications of the new heterocyclic ligand are described. The complexation reaction of the ligand with some cations was studied in aqueous methanol at room temperature using the spectrophotometric method. Results revealed that only the absorption spectra of the Fe (III)–ligand complex show a high redshift of the absorption maximum in the aqueous methanol soluti...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2013
ISSN: 0094-8276
DOI: 10.1002/grl.50296