Optimization of determination of platinum group …
Optimization of determination of platinum group elements in airborne particulate matter by inductively coupled plasma mass spectrometry. Bujdoš M, Hagarová I, Matúš P, Canecká L, Kubová J. Determination of automotive traffic-emitted platinum group metals (PGM) by inductively coupled plasma quadrupole mass spectrometry (ICP-MS) was optimized.
ICP AES determination of platinum group elements …
ICP AES techniques for the determination of all platinum group elements (PGEs) and gold in extract and collective strip product solution have been developed on the basis of the interrelation between the main stages of the analysis. The ICP AES permissible contents of base metals interfering with the PGE and gold determination have been established. The extraction system (a mixture of p-alkyl ...
Determination of low concentrations of platinum …
Accurate and precise determination of platinum group elements (PGEs) at ppb concentrations in geological samples is important but problematic. This stone reports an improved analytical method for the determination of Pt, Pd, Ru, Ir and Rh at sub-ppb levels by isotope dilution-inductively coupled plasma mass
Determination of platinum group elements in …
Determination of platinum group elements in catalysts recycling products by SEM with energy dispersive spectrometer Analysis of platinum group elements (PGE) extracted from various catalysts used in the car, petroleum and stone industries requires use of microanalytical methods.
On the determination of platinum group elements …
18-8-2003 · The interferences from Cd, Cu, Hf, Pb, Sr, Zn, Zr and Y on the inductively coupled plasma quadrupole mass spectrometry (ICP-MS) determination of Pt, Pd, Rh, Ru and Ir in geological (Pt-ore SARM-7, abundance range for platinum metals 0.07–3.74 μg/g) and environmental samples (sediment JSd-2 abundance range for Pt and Pd 0.0167–0.021 μg/g; road dust and plant sample) are evaluated …
Platinum group | stone element group | Britannica
Platinum group, six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and platinum (Pt). The elements all possess a silvery white colour—except osmium, which is bluish white. The stone behaviour of these metals is paradoxical
Platinum Group Elements - MIT
There are large deposits of platinum group elements in the Merensky and Upper Group 2 reefs in South Africa ("South Africa"). These deposits were formed from silicate magma intrusions. Immiscible sulfide liquid saturates the magma and attracts PGEs along with copper and nickel (Zientek, 2012).
Recent advances in the determination of the …
1-6-1999 · In the determination of Pt in biotic and environmental samples, Pt was concentrated on a graphite tube prior to its determination by GFAAS . The limit of detection was 0.3 ng of Pt. Au in biological samples was separated from other elements and concentrated on a niobium cathode for its subsequent determination by RNAA . 3. Instrumental methods
Platinum group metals (PGM); occurrence, use and …
1-9-2000 · Details of the occurrence of the platinum group metals (PGM) in the Earths crust and the composition of the principal minerals are presented along with data on supply and demand of PGM in different fields. Trace level determination of the PGM requires preconcentration. Methods such as fire assay, chlorination, ion exchange, etc., are dealt with.
Platinum-Group Element - an overview | …
Platinum-group elements occur mainly in or near sulphide minerals in an ore deposit. They are typically dissolved in pentlandite [(Ni,Fe) 9 S 8], or present as distinct mineral grains, for example, as braggite [(Pt,Pd)S].The minerals containing platinum-group elements are often attached to or occluded by grains of pentlandite, pyrrhotite [Fe 8 S 9] and chalcopyrite [CuFeS 2].
ICP AES determination of platinum group elements …
Problems involved in the determination of Au and the platinum group elements by the nickel sulphide fire assay (NiS-FA) procedure for black shale samples, samples containing magnetite, and samples ...
Platinum-Group Element - an overview | …
Platinum-Group Element. Platinum Group Elements ... Pb-FA is normally used for the determination of Au, Pt, and Pd in geologic samples. Detection limits of 2, 0.1, and 0.5 ppb ... cobalt, silver and gold as by-products. The main Russian mining region is around Norilsk and Talnakh, in northern Siberia. It has six underground mines and one open ...
Platinum group - Wikipedia
The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table.These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6).
DETERMINATION OF PLATINUM GROUP ELEMENTS IN …
Platinum group elements in earth sciences — in brief Platinum group elements (PGE: Ru, Rh, Pd, Os, Ir, Pt) have multiple usages in the geological and environmental sciences.1 PGE exploration databaseshavebeen createdby various groupsacrossthe globe representing different geological settings for greater understanding of its metallogeny.2
Determination of platinum group elements (PGE) in ...
The accurate determination of Pt, Pd and Rh (platinum group elements, PGE) in environmental samples by inductively coupled plasma–mass spectrometry (ICP-MS) is complicated by molecular ion and doubly charged ion interferences (e.g. CuAr+, HfO+, SrO+, YO+ and Pb2+). Two matrix separation techniques, tellurium coprecipitation and ion exchange, are compared in terms of PGE recovery and ...
Factorial and Doehlert designs in the optimization …
The platinum group elements ... Recoveries from the iron commercial product spiked with 0.100 mu g ... Determination of platinum group elements in impact breccias using neutron activation ...
Determination of Platinum‐Group Elements and …
Determination of Platinum‐Group Elements and R e‐O s Isotopes using ID ‐ICP ‐MS and N‐TIMS from a Single Digestion after Two‐Stage Column Separation Jie Li State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of …
THE OPTIMIZATION AND CALIBRATION OF SPARK- OPTICAL ...
three largest platinum producing companies for the determination of impurities in their products. It is also used for the determination of PGMs after Fire Assay procedure by Anglo American Platinum. The greatest challenge for this technique remains the availability of certified reference materials (CRM) and calibration standards.
Determination of Platinum‐Group Elements and …
Determination of Platinum‐Group Elements and Gold in Ferromanganese Nodule Reference Samples. Evgeniya D. Berezhnaya. Corresponding Author. E-mail address: [email protected] P.P. Shirshov Institute of Oceanology, Russian Academy of Science, Nakhimovsky prosp. 36, Moscow, 117997 Russia.
Optimization of sample preparation and a …
Optimization of Hg determination and standard ... aqua regia or different acid mixtures are used in the determination of the platinum group metals (PGMs), of which Pd is ... Kollidon® 17 PF. Concentrations of impurities analyzed were also very low for this product. A few elements were detected at concentrations slightly above the ...