An Improved Fe–Ni Sulfide Fire Assay Method for Determination of Re, Platinum Group Elements, and Os Isotopic Ratios by Inductively Coupled Plasma– and Negative Thermal Ionization–Mass Spectrometry
Applied Spectroscopy, Vol. 63, Issue 11, pp. 1232-1237
» View Full Text: Acrobat PDF (284 KB)
Citation
Yali Sun, Zhuyin Chu, Min Sun, and Xiaoping Xia, "An Improved Fe–Ni Sulfide Fire Assay Method for Determination of Re, Platinum Group Elements, and Os Isotopic Ratios by Inductively Coupled Plasma– and Negative Thermal Ionization–Mass Spectrometry," Appl. Spectrosc. 63, 1232-1237 (2009)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-63-11-1232
Email
BibSonomy
Connotea
Cite U Like
del.icio.usAbstract
An improved Fe–Ni sulfide fire assay method has been developed for determination of Re, the platinum group elements (PGE), and Os isotopic ratios using inductively coupled plasma–mass spectrometry (ICP-MS) and negative thermal ionization–mass spectrometry (NTI-MS). Recovery of Re using the neoclassical NiS fire assay technique is very low, but recoveries of up to 75% can be achieved by using Fe–Ni sulfide as a collector and Na2B4O7 as a flux. Using isotope dilution for determination of Re, a number of standard reference materials were analyzed for PGE and Re, and the results are consistent with their certified values. Multiple analyses of the reference standard GBW 07290 produced precisions ranging from 2.2% for Os to 5.9% for Ir. The detection limits are 2 pg g−1 for Ru, 1.5 pg g−1 for Rh, 25 pg g−1 for Pd, 23 pg g−1 for Re, 0.7 pg g−1 for Os, 1 pg g−1 for Ir, and 6 pg g−1 for Pt. The low procedural blank of Os (1.3 pg g−1) makes the Fe–Ni sulfide fire assay suitable for analysis of Os isotopic compositions. Using NTI-MS, the 187Os/188Os ratios were measured for WPR-1 and they are consistent with literature values.
» View Full Text: Acrobat PDF (284 KB)
References
Please [login to View References]
Cited By
OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.
OSA is a member of 
- Oct 08 2009 : See the latest ISP articles in the Applied Optics feature on Digital Holography in 3-D Imaging.
- Sep 25 2009 : Energy Express: Optics Express announces a special bi-monthly supplement dedicated to rapid developments in optics for sustainable energy.
- Sep 21 2009 : The 2009 Education and Training in Optics and Photonics papers are now available.
- Invisibility Visualized
Nov 12, 2009 - Scientists and curiosity seekers who want to know what a partially or... more - Diamonds are a Laser's Best Friend
Sep 18, 2009 - Tomorrow’s lasers may come with a bit of bling, thanks to a new... more - Open Wide and Say ‘Zap’
Aug 19, 2009 - A group of researchers in Australia and Taiwan has developed a new... more
