Matches in SemOpenAlex for { <https://semopenalex.org/work/W2038599510> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2038599510 endingPage "2251" @default.
- W2038599510 startingPage "2241" @default.
- W2038599510 abstract "This article addresses the analysis of eight precious metals (Au and Ag, plus the six Platinum Group Elements (PGE): Pt, Ir, Os, Ru, Rh, and Pd). The metals are measured in Fe-Ni-(Cu) sulphidos by Accelerator Mass Spectrometry (AMS). Samples are analysed in the form of small polished cores, derived from sulphido- and oxide-rich rocks, and from Ni-S-dominated fire assay beads. The chosen analytical strategies are shown to have essentially zero background for Au, Ag, and the PGE, with the notable result that detection limits, like precision, are limited only by the time available for analysis. Sensitivities for monatomic negative ions are in the order Au ≈ Ag > Pt ≈ Rh > Pd ≈ Ir > Ru > Os, with nominal detection limits (quoted on the basis of equal counting times of 100 sec) ranging from 0.1 ppb for Au to <600 ppb for Os. The utility of the method is exemplified in terms of analysis of specific sulphidic precious-metal ores. Although optical and Scanning Electron Microscope (SEM) studies reveal substantial heterogeneities in the NiS beads, on scales varying from 1 μm to 100 μm, reproducible results to a precision of < 10% can be obtained because the probing beam of Cs, ≈ 500 μm in diameter, averages out these inhomogeneities, but still has the spatial resolution to provide grain-by-grain analysis of coarse ore samples. The magnitudes of PGE partition coefficients between the sulphido components of the beads, which await determination with a collimated probing beam, provide a limiting factor in the attainable precision of the results. These samples have become the reference material of choice for precious metal analysis within this laboratory. The technique permits direct measurement of the partitioning of precious metals between coexisting ore minerals, and of PGE patterns within single crystals of such phases as pyrite and chromite." @default.
- W2038599510 created "2016-06-24" @default.
- W2038599510 creator A5010711498 @default.
- W2038599510 creator A5012297849 @default.
- W2038599510 creator A5088009850 @default.
- W2038599510 date "1991-08-01" @default.
- W2038599510 modified "2023-09-25" @default.
- W2038599510 title "In situ analysis of precious metals in polished mineral samples and sulphido “standards” by Accelerator Mass Spectrometry at concentrations of parts-per-billion" @default.
- W2038599510 cites W128312688 @default.
- W2038599510 cites W1970033364 @default.
- W2038599510 cites W1987424544 @default.
- W2038599510 cites W1992591997 @default.
- W2038599510 cites W1992658428 @default.
- W2038599510 cites W1994318556 @default.
- W2038599510 cites W2000720319 @default.
- W2038599510 cites W2008011769 @default.
- W2038599510 cites W2034525955 @default.
- W2038599510 cites W2047259108 @default.
- W2038599510 cites W2052412545 @default.
- W2038599510 cites W2078631904 @default.
- W2038599510 cites W2084335696 @default.
- W2038599510 cites W2085347998 @default.
- W2038599510 cites W2095190472 @default.
- W2038599510 cites W2095361273 @default.
- W2038599510 cites W2113295528 @default.
- W2038599510 cites W2156357930 @default.
- W2038599510 cites W2163737148 @default.
- W2038599510 cites W2168455811 @default.
- W2038599510 cites W4255595597 @default.
- W2038599510 doi "https://doi.org/10.1016/0016-7037(91)90100-j" @default.
- W2038599510 hasPublicationYear "1991" @default.
- W2038599510 type Work @default.
- W2038599510 sameAs 2038599510 @default.
- W2038599510 citedByCount "13" @default.
- W2038599510 crossrefType "journal-article" @default.
- W2038599510 hasAuthorship W2038599510A5010711498 @default.
- W2038599510 hasAuthorship W2038599510A5012297849 @default.
- W2038599510 hasAuthorship W2038599510A5088009850 @default.
- W2038599510 hasConcept C113196181 @default.
- W2038599510 hasConcept C119128265 @default.
- W2038599510 hasConcept C121073033 @default.
- W2038599510 hasConcept C161790260 @default.
- W2038599510 hasConcept C162356407 @default.
- W2038599510 hasConcept C185592680 @default.
- W2038599510 hasConcept C191897082 @default.
- W2038599510 hasConcept C192562407 @default.
- W2038599510 hasConcept C199289684 @default.
- W2038599510 hasConcept C2781251403 @default.
- W2038599510 hasConcept C43617362 @default.
- W2038599510 hasConcept C518104683 @default.
- W2038599510 hasConcept C521398313 @default.
- W2038599510 hasConcept C544153396 @default.
- W2038599510 hasConcept C55493867 @default.
- W2038599510 hasConceptScore W2038599510C113196181 @default.
- W2038599510 hasConceptScore W2038599510C119128265 @default.
- W2038599510 hasConceptScore W2038599510C121073033 @default.
- W2038599510 hasConceptScore W2038599510C161790260 @default.
- W2038599510 hasConceptScore W2038599510C162356407 @default.
- W2038599510 hasConceptScore W2038599510C185592680 @default.
- W2038599510 hasConceptScore W2038599510C191897082 @default.
- W2038599510 hasConceptScore W2038599510C192562407 @default.
- W2038599510 hasConceptScore W2038599510C199289684 @default.
- W2038599510 hasConceptScore W2038599510C2781251403 @default.
- W2038599510 hasConceptScore W2038599510C43617362 @default.
- W2038599510 hasConceptScore W2038599510C518104683 @default.
- W2038599510 hasConceptScore W2038599510C521398313 @default.
- W2038599510 hasConceptScore W2038599510C544153396 @default.
- W2038599510 hasConceptScore W2038599510C55493867 @default.
- W2038599510 hasIssue "8" @default.
- W2038599510 hasLocation W20385995101 @default.
- W2038599510 hasOpenAccess W2038599510 @default.
- W2038599510 hasPrimaryLocation W20385995101 @default.
- W2038599510 hasRelatedWork W1593734660 @default.
- W2038599510 hasRelatedWork W1975598591 @default.
- W2038599510 hasRelatedWork W1990297533 @default.
- W2038599510 hasRelatedWork W1999552077 @default.
- W2038599510 hasRelatedWork W2039270751 @default.
- W2038599510 hasRelatedWork W2041916731 @default.
- W2038599510 hasRelatedWork W2051502607 @default.
- W2038599510 hasRelatedWork W2341642001 @default.
- W2038599510 hasRelatedWork W2916939886 @default.
- W2038599510 hasRelatedWork W431098592 @default.
- W2038599510 hasVolume "55" @default.
- W2038599510 isParatext "false" @default.
- W2038599510 isRetracted "false" @default.
- W2038599510 magId "2038599510" @default.
- W2038599510 workType "article" @default.