Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples
The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as co...
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| Autor*in: |
Suominen, Meeri [verfasserIn] Kontas, Esko [verfasserIn] Niskavaara, Heikki [verfasserIn] |
|---|
| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 2004 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2007 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: Geostandards and geoanalytical research - Oxford : Wiley-Blackwell, 1977, 28(2004), 1, Seite 0 |
| Übergeordnetes Werk: |
volume:28 ; year:2004 ; number:1 ; pages:0 |
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| DOI / URN: |
10.1111/j.1751-908X.2004.tb01049.x |
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| 520 | |a The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). | ||
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10.1111/j.1751-908X.2004.tb01049.x doi (DE-627)NLEJ242831818 DE-627 ger DE-627 rakwb Suominen, Meeri verfasserin aut Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples Oxford, UK Blackwell Publishing Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Keywords: lead fire assay Kontas, Esko verfasserin aut Niskavaara, Heikki verfasserin aut In Geostandards and geoanalytical research Oxford : Wiley-Blackwell, 1977 28(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926987 (DE-600)2276474-4 1751-908X nnns volume:28 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1751-908X.2004.tb01049.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2004 1 0 |
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10.1111/j.1751-908X.2004.tb01049.x doi (DE-627)NLEJ242831818 DE-627 ger DE-627 rakwb Suominen, Meeri verfasserin aut Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples Oxford, UK Blackwell Publishing Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Keywords: lead fire assay Kontas, Esko verfasserin aut Niskavaara, Heikki verfasserin aut In Geostandards and geoanalytical research Oxford : Wiley-Blackwell, 1977 28(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926987 (DE-600)2276474-4 1751-908X nnns volume:28 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1751-908X.2004.tb01049.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2004 1 0 |
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10.1111/j.1751-908X.2004.tb01049.x doi (DE-627)NLEJ242831818 DE-627 ger DE-627 rakwb Suominen, Meeri verfasserin aut Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples Oxford, UK Blackwell Publishing Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Keywords: lead fire assay Kontas, Esko verfasserin aut Niskavaara, Heikki verfasserin aut In Geostandards and geoanalytical research Oxford : Wiley-Blackwell, 1977 28(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926987 (DE-600)2276474-4 1751-908X nnns volume:28 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1751-908X.2004.tb01049.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2004 1 0 |
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10.1111/j.1751-908X.2004.tb01049.x doi (DE-627)NLEJ242831818 DE-627 ger DE-627 rakwb Suominen, Meeri verfasserin aut Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples Oxford, UK Blackwell Publishing Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Keywords: lead fire assay Kontas, Esko verfasserin aut Niskavaara, Heikki verfasserin aut In Geostandards and geoanalytical research Oxford : Wiley-Blackwell, 1977 28(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926987 (DE-600)2276474-4 1751-908X nnns volume:28 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1751-908X.2004.tb01049.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2004 1 0 |
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10.1111/j.1751-908X.2004.tb01049.x doi (DE-627)NLEJ242831818 DE-627 ger DE-627 rakwb Suominen, Meeri verfasserin aut Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples Oxford, UK Blackwell Publishing Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Keywords: lead fire assay Kontas, Esko verfasserin aut Niskavaara, Heikki verfasserin aut In Geostandards and geoanalytical research Oxford : Wiley-Blackwell, 1977 28(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926987 (DE-600)2276474-4 1751-908X nnns volume:28 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1751-908X.2004.tb01049.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 28 2004 1 0 |
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Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples |
| abstract |
The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). |
| abstractGer |
The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). |
| abstract_unstemmed |
The classical lead fire assay is still the most important method for the pre-concentration and separation of Ag, Au and some of the platinum-group elements (PGE) in the analysis of geological materials. The most frequently used fire assay procedure is the determination of Au, Pd and Pt with Ag as collector. When Au is used instead of Ag as a collector, Pd, Pt, Rh and possibly Ir can also be determined. In this study the recoveries by Au and Ag collectors, also called inquarts, were compared in the fire assay analysis of Pd, Pt and Rh in geological reference materials. The amount of gold to be added was optimised. Variable recoveries were obtained with Ag inquart for Rh, but a 2 mg inquart of Au gave good recoveries for all three of these elements in the analysis of reference samples of different geological materials. A procedure, alternative to scorification, to overcome interferences caused by base metals in the cupellation step is presented. The procedure involves cutting the Pb button into pieces and analysing the pieces separately. Prior to this, a homogeneity study of the lead button was made, and it showed that Pd, Pt and Rh were evenly distributed in the Pb button. All determinations were made using inductively coupled plasma-atomic emission spectrometry (ICP-AES). |
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Comparison of Silver and Gold Inquarting in the Fire Assay Determination of Palladium/Platinum and Rhodium in Geological Samples |
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Kontas, Esko Niskavaara, Heikki |
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10.1111/j.1751-908X.2004.tb01049.x |
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