Rare earth elements as nonabsorbable fecal markers in studies of iron absorption
نویسندگان
چکیده
منابع مشابه
Determination of Rare Earth Elements in Products of Chadormalu Iron Ore Concentrator Plant (Iran) from Beneficiation Point of View
Different samples have been prepared from different products in Chadormalu iron ore concentrator plant: Low intensity magnetite separators concentrate (magnetite concentrate), reverse flotation tail (final hematite concentrate), flotation concentrate (apatite concentrate), final tail (L.I.M.S. tail + reverse flotation concentrate+ apatite flotation tail). The samples were used for rare eart...
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The present review deals with the utilisation of rare earth (RE) elements as particulate markers for ruminant nutrition studies. RE elements have similar chemical properties. They are attractive for use as a multiple marker system because they bind tightly to plant materials. RE binding of plant cell walls is cyclic throughout the RE series, which can be explained by the filling of the 4 f elec...
متن کاملAssessing the utility of trace and rare earth elements as biosignatures in microbial iron oxyhydroxides
Christine Heim*, Klaus Simon, Danny Ionescu, Andreas Reimer, Dirk De Beer, Nadia-Valérie Quéric, Joachim Reitner and Volker Thiel 1 Department of Geobiology, Geoscience Centre, University of Göttingen, Göttingen, Germany 2 Department of Geochemistry, Geoscience Centre, University of Göttingen, Göttingen, Germany 3 Max-Planck-Institute for Marine Microbiology, Microsensor Research Group, Bremen,...
متن کاملRare Earth Elements Profile
Definitions and characteristics The rare earth elements (REE) (sometimes referred to as the rare earth metals) are a group of 17 chemically similar metallic elements, including the 15 lanthanides, scandium and yttrium. The lanthanides are elements spanning atomic numbers 57 (lanthanum, La) to 71 (lutetium, Lu) (Table 1). The lanthanides all occur in nature, although promethium, the rarest, only...
متن کاملConcentration and recycling of rare earth elements (REEs) from iron mine waste using a combination of physical separation methods
This study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (REE) recoveries from iron mine waste. The electron microprobe showed that high amoun...
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ژورنال
عنوان ژورنال: The American Journal of Clinical Nutrition
سال: 1997
ISSN: 0002-9165,1938-3207
DOI: 10.1093/ajcn/65.4.970