Fire Assay for Osmium

Allan, W. J.; Beamish, F. E.

doi:10.1021/ac60070a012

Cited by 25 publications

(4 citation statements)

References 6 publications

(6 reference statements)

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“…Losses of osmium due to retention by the slag or the volatilization of OsO4 formed during the cupellation were also reported. 25 Losses of ruthenium in the form of RuO4 during the fusion and cuppelation were negligible.…”

Section: Fire Assaymentioning

confidence: 98%

Sample Digestion Methods for the Determination of Traces of Precious Metals by Spectrometric Techniques

Balcerzak

2002

ANAL. SCI.

164

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Recent advances in digestion methods used in the analysis of precious metal samples by spectrometric techniques are reviewed. The applicability of a fire assay, a wet acid treatment, chlorination and alkaline oxidizing fusion to a quantitative recovery of metals from various materials is discussed. Data on the precious metal contents obtained by using particular digestion methods as well as UV-VIS spectrophotometry, atomic absorption spectrometry, atomic emission spectrometry and inductively coupled plasma mass spectrometry in the examination of various samples are tabulated.

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Section: Fire Assaymentioning

confidence: 98%

Sample Digestion Methods for the Determination of Traces of Precious Metals by Spectrometric Techniques

Balcerzak

2002

ANAL. SCI.

164

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“…In both pure geochemical as well as exploration studies, it is necessary to use a large sample size (10-50 g) to overcome 'nugget effects' for the PGE determinations, and NiS fire-assay is the best method for the separation of PGE from the rock matrix although there are also potential losses of Os on dissolution (Allan & Beamish, 1952 (Balaram, Patil, et al, 2006a;Hoffman, 1992;Satyanarayanan et al, 2018).…”

Section: Pgementioning

confidence: 99%

Current and emerging analytical techniques for geochemical and geochronological studies

Balaram

2020

Geological Journal

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“…The efficiency of the recovery of osmium by collection in lead was discussed by Allan and Beamish (6). Measured by means of synthetic samples the loss of osmium may reach 6%.…”

Section: Noble Elementsmentioning

confidence: 99%