Assessing rare earth elements in quartz rich geological samples

A Santoro, V Thoss, S Ribeiro Guevara, D Urgast, A Raab, S Mastrolitti, J Feldmann

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Sodium peroxide (Na2O2) fusion coupled to Inductively Coupled Plasma Tandem Mass Spectrometry (ICP-MS/MS) measurements was used to rapidly screen quartz-rich geological samples for rare earth element (REE) content. The method accuracy was checked with a geological reference material and Instrumental Neutron Activation Analysis (INAA) measurements. The used mass-mode combinations presented accurate results (only exception being (157)Gd in He gas mode) with recovery of the geological reference material QLO-1 between 80% and 98% (lower values for Lu, Nd and Sm) and in general comparable to INAA measurements. Low limits of detection for all elements were achieved, generally below 10 pg g(-1), as well as measurement repeatability below 15%. Overall, the Na2O2/ICP-MS/MS method proved to be a suitable lab-based method to quickly and accurately screen rock samples originating from quartz-rich geological areas for rare earth element content; particularly useful if checking commercial viability.

Original languageEnglish
Pages (from-to)323-329
Number of pages7
JournalApplied Radiation and Isotopes
Volume107
Early online date31 Oct 2015
DOIs
Publication statusPublished - Jan 2016

Fingerprint

Rare earth elements
Quartz
rare earth elements
quartz
neutron activation analysis
Neutron activation analysis
inductively coupled plasma mass spectrometry
Inductively coupled plasma
sodium peroxides
Peroxides
viability
Mass spectrometry
Fusion reactions
mass spectroscopy
fusion
recovery
Rocks
Sodium
rocks
Recovery

Keywords

  • rare earth elements
  • ICP-MS
  • INAA
  • quartz
  • sodium peroxide

Cite this

Assessing rare earth elements in quartz rich geological samples. / Santoro, A; Thoss, V; Guevara, S Ribeiro; Urgast, D; Raab, A; Mastrolitti, S; Feldmann, J.

In: Applied Radiation and Isotopes, Vol. 107, 01.2016, p. 323-329.

Research output: Contribution to journalArticle

Santoro, A ; Thoss, V ; Guevara, S Ribeiro ; Urgast, D ; Raab, A ; Mastrolitti, S ; Feldmann, J. / Assessing rare earth elements in quartz rich geological samples. In: Applied Radiation and Isotopes. 2016 ; Vol. 107. pp. 323-329.
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AU - Mastrolitti, S

AU - Feldmann, J

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N2 - Sodium peroxide (Na2O2) fusion coupled to Inductively Coupled Plasma Tandem Mass Spectrometry (ICP-MS/MS) measurements was used to rapidly screen quartz-rich geological samples for rare earth element (REE) content. The method accuracy was checked with a geological reference material and Instrumental Neutron Activation Analysis (INAA) measurements. The used mass-mode combinations presented accurate results (only exception being (157)Gd in He gas mode) with recovery of the geological reference material QLO-1 between 80% and 98% (lower values for Lu, Nd and Sm) and in general comparable to INAA measurements. Low limits of detection for all elements were achieved, generally below 10 pg g(-1), as well as measurement repeatability below 15%. Overall, the Na2O2/ICP-MS/MS method proved to be a suitable lab-based method to quickly and accurately screen rock samples originating from quartz-rich geological areas for rare earth element content; particularly useful if checking commercial viability.

AB - Sodium peroxide (Na2O2) fusion coupled to Inductively Coupled Plasma Tandem Mass Spectrometry (ICP-MS/MS) measurements was used to rapidly screen quartz-rich geological samples for rare earth element (REE) content. The method accuracy was checked with a geological reference material and Instrumental Neutron Activation Analysis (INAA) measurements. The used mass-mode combinations presented accurate results (only exception being (157)Gd in He gas mode) with recovery of the geological reference material QLO-1 between 80% and 98% (lower values for Lu, Nd and Sm) and in general comparable to INAA measurements. Low limits of detection for all elements were achieved, generally below 10 pg g(-1), as well as measurement repeatability below 15%. Overall, the Na2O2/ICP-MS/MS method proved to be a suitable lab-based method to quickly and accurately screen rock samples originating from quartz-rich geological areas for rare earth element content; particularly useful if checking commercial viability.

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