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Laser ablation-inductively coupled plasma-dynamic reaction cell-mass spectrometry for the determination of platinum group metals and gold in NiS buttons obtained by fire assay of platiniferous ores

Martin Resano, Esperanza Garcia-Ruiz, Keith S. McIntosh and Frank Vanhaecke UGent (2008) JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 23(12). p.1599-1609
abstract
This paper discusses the potential of laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) for the determination of Au, Ir, Pd, Pt, Rh and Ru in NiS buttons obtained by fire assay of platiniferous ores. The method finally proposed is based on: (i) the sampling of large amounts of ores (40-75 g) in order to compensate for the typical inhomogeneous distribution of the target elements over the sample matrix; (ii) the grinding of the NiS buttons obtained after the fire assay procedure in order to obtain more homogeneous samples and the subsequent pelleting of the resulting powders using polyethylene wax as a binder; (iii) LA-ICPMS analysis based on the use of the line profiling mode for ablation of a representative portion of sample during each replicate measurement; (iv) the pressurization of the dynamic reaction cell (DRC) with ammonia in order to cope with all spectral interferences, and the optimization of the RPq setting to prevent the clustering of ammonia with the main matrix components (Ni, Cu), which could otherwise give rise to new spectral overlaps; and ( v) the use of home-made matrix-matched standards for calibration, combined with the monitoring of Ni-61 as an internal reference. In this way, it was feasible to obtain accurate values for all of the samples investigated with RSD values typically below 10% and LODs at the 10 ng g(-1) level. This performance makes the method appealing for the control of these types of samples in the platinum group metal industry, successfully circumventing the need for the cumbersome digestion procedures currently in use.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
keyword
DRC-MS, QUANTITATIVE-DETERMINATION, PRECIOUS METALS, GEOLOGICAL-MATERIALS, GROUP ELEMENTS, LA-ICP-MS, NICKEL SULFIDE BUTTON, INTERFERENCES, SAMPLES, CALIBRATION
journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
J. Anal. At. Spectrom.
volume
23
issue
12
pages
1599 - 1609
Web of Science type
Article
Web of Science id
000261743500006
JCR category
CHEMISTRY, ANALYTICAL
JCR impact factor
4.028 (2008)
JCR rank
4/70 (2008)
JCR quartile
1 (2008)
ISSN
0267-9477
DOI
10.1039/b807003b
language
English
UGent publication?
yes
classification
A1
id
514848
handle
http://hdl.handle.net/1854/LU-514848
date created
2009-03-05 16:06:30
date last changed
2009-03-06 11:33:19
@article{514848,
  abstract     = {This paper discusses the potential of laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) for the determination of Au, Ir, Pd, Pt, Rh and Ru in NiS buttons obtained by fire assay of platiniferous ores. The method finally proposed is based on: (i) the sampling of large amounts of ores (40-75 g) in order to compensate for the typical inhomogeneous distribution of the target elements over the sample matrix; (ii) the grinding of the NiS buttons obtained after the fire assay procedure in order to obtain more homogeneous samples and the subsequent pelleting of the resulting powders using polyethylene wax as a binder; (iii) LA-ICPMS analysis based on the use of the line profiling mode for ablation of a representative portion of sample during each replicate measurement; (iv) the pressurization of the dynamic reaction cell (DRC) with ammonia in order to cope with all spectral interferences, and the optimization of the RPq setting to prevent the clustering of ammonia with the main matrix components (Ni, Cu), which could otherwise give rise to new spectral overlaps; and ( v) the use of home-made matrix-matched standards for calibration, combined with the monitoring of Ni-61 as an internal reference. In this way, it was feasible to obtain accurate values for all of the samples investigated with RSD values typically below 10\% and LODs at the 10 ng g(-1) level. This performance makes the method appealing for the control of these types of samples in the platinum group metal industry, successfully circumventing the need for the cumbersome digestion procedures currently in use.},
  author       = {Resano, Martin and Garcia-Ruiz, Esperanza and McIntosh, Keith S. and Vanhaecke, Frank},
  issn         = {0267-9477},
  journal      = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY},
  keyword      = {DRC-MS,QUANTITATIVE-DETERMINATION,PRECIOUS METALS,GEOLOGICAL-MATERIALS,GROUP ELEMENTS,LA-ICP-MS,NICKEL SULFIDE BUTTON,INTERFERENCES,SAMPLES,CALIBRATION},
  language     = {eng},
  number       = {12},
  pages        = {1599--1609},
  title        = {Laser ablation-inductively coupled plasma-dynamic reaction cell-mass spectrometry for the determination of platinum group metals and gold in NiS buttons obtained by fire assay of platiniferous ores},
  url          = {http://dx.doi.org/10.1039/b807003b},
  volume       = {23},
  year         = {2008},
}

Chicago
Resano, Martin, Esperanza Garcia-Ruiz, Keith S. McIntosh, and Frank Vanhaecke. 2008. “Laser Ablation-inductively Coupled Plasma-dynamic Reaction Cell-mass Spectrometry for the Determination of Platinum Group Metals and Gold in NiS Buttons Obtained by Fire Assay of Platiniferous Ores.” Journal of Analytical Atomic Spectrometry 23 (12): 1599–1609.
APA
Resano, M., Garcia-Ruiz, E., McIntosh, K. S., & Vanhaecke, F. (2008). Laser ablation-inductively coupled plasma-dynamic reaction cell-mass spectrometry for the determination of platinum group metals and gold in NiS buttons obtained by fire assay of platiniferous ores. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 23(12), 1599–1609.
Vancouver
1.
Resano M, Garcia-Ruiz E, McIntosh KS, Vanhaecke F. Laser ablation-inductively coupled plasma-dynamic reaction cell-mass spectrometry for the determination of platinum group metals and gold in NiS buttons obtained by fire assay of platiniferous ores. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 2008;23(12):1599–609.
MLA
Resano, Martin, Esperanza Garcia-Ruiz, Keith S. McIntosh, et al. “Laser Ablation-inductively Coupled Plasma-dynamic Reaction Cell-mass Spectrometry for the Determination of Platinum Group Metals and Gold in NiS Buttons Obtained by Fire Assay of Platiniferous Ores.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 23.12 (2008): 1599–1609. Print.