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Platinum Group Elements Mineralization
2020Platinum group element (PGE) mineralization is associated with ultramafic and mafic rocks. There are three major types of PGE mineralization in Mongolia. The most common is (1) PGE mineralization related to ophiolites and includes podiform chromite, (2) PGE in layered gabbro intrusion, and (3) PGE-Au placer.
Baasandorj Altanzul, Ochir Gerel
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Platinum Group Elements in the Feathers of Raptors and Their Prey
Archives of Environmental Contamination and Toxicology, 2002Platinum (Pt), palladium (Pd), and rhodium (Rh) concentrations were determined in the feathers of three raptor species in Sweden, the sparrowhawk ( Accipiter nisus), the peregrine falcon ( Falco peregrinus), and the gyrfalcon ( Falco rusticolus), as well as the main prey of the sparrowhawk (the house sparrow, Passer domesticus) and the gyrfalcon (the ...
K H, Jensen +3 more
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A survey of the determination of the platinum group elements
Talanta, 1987The platinum-group metals (PGMs), Ru, Rh, Pd, Os, Ir and Pt, are widely used as catalysts in petroleum and chemical processes. They find wide applications in automotive exhaust-gas control converters and are of immense importance to the electronics industry.
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Platinum group elements in the environment and their health risk
Science of The Total Environment, 2004Accumulation of platinum group elements (PGEs) in the environment has been increased over the time. Catalytic converters of modern vehicles are considered to be the main sources of PGE pollution, since the correlation is between the Pt:Rh ratios in various environmental compartments and in converter units.
Ravindra, Khaiwal +2 more
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1993
Platinum group elements are ruthenium, rhodium and palladium (of similar weight as, but lighter than silver, the next element in the periodic table by atomic number) and osmium, iridium and platinum (of similar weight as, but lighter than gold, the next element in the periodic table by atomic number). As opposed to gold and silver, known probably since
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Platinum group elements are ruthenium, rhodium and palladium (of similar weight as, but lighter than silver, the next element in the periodic table by atomic number) and osmium, iridium and platinum (of similar weight as, but lighter than gold, the next element in the periodic table by atomic number). As opposed to gold and silver, known probably since
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Platinum-Group Elements in Cosmochemistry
Elements, 2008In a cooling solar nebula, five of the six platinum-group elements (PGE) condense as refractory-metal alloys at temperatures above the condensation of Fe-Ni metal. Non-refractory Pd condenses in solid solution with Fe-Ni. Such refractory alloys are preserved in some meteorites, although they are often highly altered.
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Sources of Platinum Group Elements in the Environment
2014Platinum group elements (PGE, i.e. Pt, Pd, Rh, Ir, Ru, Os) are among the least abundant elements in the Earth’s continental crust. PGE concentrations in urban and roadside environments are, however, increasing as a result of anthropogenic emissions.
Sebastien Rauch +1 more
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Gold and platinum group element analysis
1987Throughout history, gold, silver and the platinum group elements have occupied a position of considerable social and economic importance. Indeed, the analytical chemistry of these elements extends back into pre-history, analyses being traditionally performed by fire assay techniques.
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Geochemistry of platinum group elements in the ocean
ГеохимияThe review considers the current state of research on the geochemistry of platinum group elements (PGEs) in the ocean. The behavior of PGE in the aquatic environment is determined by their degree of oxidation, the ability to change it, and complexation. The difference in chemical properties of PGEs leads to the fact that in the ocean they do not retain
E. D. Berezhnaya, A. V. Dubinin
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Platinum group element (PGE) deposits
2004PGE accessible to mankind are derived from the earth’s mantle, with possibly a component coming from the core. This chapter is concerned with (a) the distribution and behavior of PGE in the mantle and in magmas derived from the mantle, (b) the characteristics of deposits derived directly or indirectly from these magmas, and (c) the methods by which ...
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