Concentrations of Platinum Group Elements in 122 U.S. Coal ...
Platinum: Thirty-six of the 122 samples had "less than" values for platinum (generally <2 ppb). The highest concentration of Pt (aside from the suspect value from the coal waste sample from Texas) is 33 ppb from the Greenbrier Co., WV sample.
Platinum group element and cerium concentrations in ...
Platinum concentrations averaged between 60 and 144 μg/kg in soils collected in local townships, which falls in the range of that determined for soils sampled at Site 2. Similar to Site 1, PGE concentrations did not significantly decline with increases in distance to traffic for the North-South transect.
Concentrations and origins of platinum group elements in ...
Studies by Van der Flier-Keller, 1991, Van der Flier-Keller, 1992 and Goodarzi et al. (1993) also revealed that the high concentrations of the PGEs in bituminous coals from British Columbia are due to the faulting and folding of coal seams that facilitated the movements of platinum-rich solution along fault planes caused by tectonics.
A New Way to Find Platinum Group Metals - Advancing Mining
The average grade of platinum-group elements (PGEs) in ores mined for their PGE concentrations range from 5 to 15 ppm. In most rocks, platinum-group minerals range in size from less than a micron to a few hundred microns in diameter, so the presence of PGEs must be confirmed by laboratory analysis.
Increase of platinum group element concentrations in soils ...
Dec 15, 2007 · Increase of platinum group element concentrations in soils and airborne dust in an urban area in Germany. ... The VEC are made up of monoliths providing a large surface coated with platinum group elements (PGE), namely Pt, Pd, and Rh in …
XRF Helps Meet the Platinum Group Metals Mining Challenge
The average grade of platinum-group elements (PGEs) in ores mined for their PGE concentrations range from 5 to 15 ppm. In most rocks, platinum-group minerals range in size from less than a micron to a few hundred microns in diameter, so the presence of PGEs must be confirmed by laboratory analysis.
(PDF) Sources of Platinum Group Elements in the Environment
Platinum 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 ...
Chapter 6.11 Platinum - World Health Organization
Platinum, together with the other platinum group metals, is present at low levels in the lithosphere, with an average platinum concentration of 0.001–0.005 mg/kg (4). Concentrates of economic importance are present in the Transvaal, South Africa, in Siberia and in the Urals at
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Platinum Group Element Concentrations and Osmium …
Platinum Group Element Concentrations and Osmium Isotopic Composition in Urban Airborne Particles from Boston, Massachusetts SEBASTIEN RAUCH,*,†,‡ HAROLD F. HEMOND,‡ BERNHARD PEUCKER-EHRENBRINK,§ KRISTINE H. EK,† AND GREGORY M. MORRISON† Water Environment Technology, Chalmers University of Technology, 412 96 Go¨teborg, Sweden ...
Platinum Ores | Article about Platinum Ores by The Free ...
Platinum group metals are unevenly distributed within deposits of platinum ores. Their concentrations range from 2–5 g to several kilograms per ton in primary platinum ores, from tenths to hundredths (sometimes thousandths) of grams per ton in primary complex ores, and from tens of milligrams to hundreds of grams per cu m in placer deposits.
Anthropogenic platinum group element (Pt, Pd, Rh ...
Background. Platinum group elements (PGE), in particular platinum (Pt), palladium (Pd), and rhodium (Rh), are few of the least abundant elements in the Earth’s continental crust, with estimated concentrations of 0.4–0.06 ppb (Wedepohl 1995).These metals and their compounds are highly valued by chemical, stone and pharmaceutical industries for use as catalysts in a wide range of reactions ...
Platinum-group element concentrations in pyrite from the ...
Feb 24, 2016 · The Main Sulfide Zone (MSZ) of the Great Dyke of Zimbabwe hosts the world’s second largest resource of platinum-group elements (PGE) after the Bushveld Complex in South Africa. The sulfide assemblage of the MSZ comprises pyrrhotite, pentlandite, chalcopyrite, and minor pyrite. Recently, several studies have observed in a number of Ni-Cu-PGE ore deposits that pyrite may host …
Platinum-group element concentrations in BCR-723: A ...
Jan 23, 2007 · BCR-723 is the only environmental certified reference material for platinum-group elements (PGEs) Pt, Pd and Rh. It has been an integral component of quality control/quality assurance procedures in environmental laboratories measuring PGEs, since 2001.
Rhenium‐osmium isotope systematics and platinum group ...
Platinum concentrations vary between 103 and 1938 pg/g, with an average/median value of 506/335 pg/g, whereas Pd concentrations range from 137 to 1397 pg/g, with an …
Impact of platinum group metals on the environment: a ...
Impact of platinum group metals on the environment: a toxicological, genotoxic and analytical chemistry study. Gagnon ZE(1), Newkirk C, Hicks S. ... This deposition is leading to increasing concentrations of PGMs in the environment, raising concerns about the environmental impact and toxicity of these elements in living organisms. ...
Platinum group elements (Pt, Pd, Rh) in airborne ...
Feb 01, 2012 · Platinum group elements (Pt, Pd, Rh) in airborne particulate matter in rural vs. urban areas of Germany: concentrations and spatial patterns of distribution. Zereini F(1), Alsenz H, Wiseman CL, Püttmann W, Reimer E, Schleyer R, Bieber E, Wallasch M.
Platinum Group Element Concentrations and Osmium Isotopic ...
Platinum, Pd, Rh, and Os were found to occur at elevated concentrations in airborne particles (PM10) collected at urban sites in Boston, MA. Average Pt, Pd, Rh, and Os concentrations were 6.9 ± 1.9, 8.1 ± 1.8, 1.50 ± 0.50, and 0.068 (−0.068 + 0.070) pg m-3, respectively. Elevated Pt, Pd, and Rh concentrations are attributed to automobile catalysts, which use Pt, Pd, and Rh for the removal ...