Determination of Reference Values for NIST SRM 610–617 Glasses Following ISO Guidelines
Klaus Peter Jochum,Ulrike Weis,Brigitte Stoll,D. V. Kuzmin,Qichao Yang,Ingrid Raczek,Dorrit E. Jacob,Andreas Stracke,Karin Birbaum,Daniel A. Frick,Detlef Günther,Jacinta Enzweiler +11 more
Reads0
Chats0
TLDR
In this article, the authors presented new reference values for the NIST SRM 610-617 glasses following ISO guidelines and the International Association of Geoanalysts' protocol, and determined quantitatively possible element inhomogeneities using different test portion masses of 1, 0.1 and 0.02μg.Abstract:
We present new reference values for the NIST SRM 610–617 glasses following ISO guidelines and the International Association of Geoanalysts’ protocol. Uncertainties at the 95% confidence level (CL) have been determined for bulk- and micro-analytical purposes. In contrast to former compilation procedures, this approach delivers data that consider present-day requirements of data quality. New analytical data and the nearly complete data set of the GeoReM database were used for this study. Data quality was checked by the application of the Horwitz function and by a careful investigation of analytical procedures. We have determined quantitatively possible element inhomogeneities using different test portion masses of 1, 0.1 and 0.02 μg. Although avoiding the rim region of the glass wafers, we found moderate inhomogeneities of several chalcophile/siderophile elements and gross inhomogeneities of Ni, Se, Pd and Pt at small test portion masses. The extent of inhomogeneity was included in the determination of uncertainties. While the new reference values agree with the NIST certified values with the one exception of Mn in SRM 610, they typically differ by as much as 10% from the Pearce et al. (1997) values in current use. In a few cases (P, S, Cl, Ta, Re) the discrepancies are even higher.
Nous presentons des nouvelles valeurs de reference pour les verres NIST SRM 610–617 en suivant les recommandations de l’ISO et le protocole de l’IAG. Les incertitudes au niveau de confiance de 95% ont ete determinees a des fins d’analyse totale et de micro-analyse. Contrairement aux procedures de compilation precedentes, cette approche fournit des donnees qui tiennent compte des exigences actuelles dans la qualite des donnees. De nouvelles donnees analytiques et le jeu de donnees presque complet de la base de donnees GeoReM ont ete utilises pour cette etude. La qualite des donnees a ete verifiee par l’application de la fonction de Horwitz et par un examen minutieux des procedures analytiques. Nous avons determine quantitativement les possibles inhomogeneites d’element en utilisant des prises d’essai de masses differentes correspondant a 1, 0.1 et 0.02 μg. Bien que nous ayons evite les zones de bordure des disques de verre, nous avons trouve des inhomogeneites moderees pour plusieurs elements chalcophiles/siderophiles et des inhomogeneites flagrantes de Ni, Se, Pd et Pt pour les prises d’essai de petites masses. La mesure d’inhomogeneite a ete incluse dans la determination des incertitudes. Alors que les nouvelles valeurs de reference sont en accord avec les valeurs NIST certifiees a la seule exception du Mn dans SRM 610, elles sont generalement differentes, avec des ecarts de pres de 10%, des valeurs de Pearce et al. (1997) qui sont d’un usage courant. Dans quelques cas (P, S, Cl, Ta, Re), les ecarts sont encore plus eleves.read more
Citations
More filters
Journal ArticleDOI
Evidence for early life in Earth’s oldest hydrothermal vent precipitates
Matthew S. Dodd,Matthew S. Dodd,Dominic Papineau,Dominic Papineau,Tor Grenne,John F. Slack,Martin Rittner,Franco Pirajno,Jonathan O'Neil,Crispin T. S. Little +9 more
TL;DR: Observations from ferruginous sedimentary rocks from the Nuvvuagittuq belt in Quebec, Canada are consistent with an oxidized biomass and provide evidence for biological activity in submarine-hydrothermal environments more than 3,770 million years ago.
Journal ArticleDOI
Reference Values Following ISO Guidelines for Frequently Requested Rock Reference Materials
Klaus Peter Jochum,Ulrike Weis,Beate Schwager,Brigitte Stoll,Stephen A. Wilson,Gerald H. Haug,Meinrat O. Andreae,Jacinta Enzweiler +7 more
TL;DR: In this article, the authors present new reference values for nineteen USGS, GSJ and GIT-IWG rock reference materials that belong to the most accessed samples of the GeoReM database.
Journal ArticleDOI
Apatite Trace Element Compositions: A Robust New Tool for Mineral Exploration
TL;DR: Apatites from the major types of mainly magmatic-hydrothermal mineral deposits (30 localities, mostly in British Columbia, Canada) together with apatites from carbonatites (29 intrusive complexes) and unmineralized rocks (11 localities) have been analyzed by electron microprobe and laser ablation-inductively coupled plasma mass spectrometry.
Journal ArticleDOI
Origin and age of the earliest Martian crust from meteorite NWA 7533
Munir Humayun,Alexander A. Nemchin,Alexander A. Nemchin,Brigitte Zanda,Brigitte Zanda,Roger H. Hewins,Roger H. Hewins,Marion Grange,Allen K. Kennedy,Jean-Pierre Lorand,Christa Göpel,C. Fieni,Sylvain Pont,Damien Deldicque +13 more
TL;DR: Evidence for early crustal differentiation implies that the Martian crust, and its volatile inventory, formed in about the first 100 million years of Martian history, coeval with earliest crust formation on the Moon and the Earth.
Journal ArticleDOI
An experimental study of trace element partitioning between zircon and melt as a function of oxygen fugacity
TL;DR: In this article, the partitioning of rare earth elements (REE), Hf, Ta, Th and U between zircon and a synthetic andesitic melt was determined as a function of oxygen fugacity ( f O 2 ) over a range of fourteen log units, from QFM−8 to QFM+6 (where QFM is the quartz-fayalite-magnetite oxygen buffer).
References
More filters
Journal ArticleDOI
A Compilation of New and Published Major and Trace Element Data for NIST SRM 610 and NIST SRM 612 Glass Reference Materials
Nicholas J. G. Pearce,William T. Perkins,John A. Westgate,Michael P. Gorton,Simon E. Jackson,Clive R. Neal,Simon P. Chenery +6 more
TL;DR: In this article, the authors present a compilation of trace element data from approximately sixty published works for NIST SRM 611 and NISTSRM 613 and provide useful new working values for these reference materials.
Journal ArticleDOI
GeoReM: A New Geochemical Database for Reference Materials and Isotopic Standards
TL;DR: GeoReM as mentioned in this paper is a relational database for reference materials and isotopic standards of geochemical and mineralogical interest, which contains published analytical and compilation values (major and trace element concentrations, radiogenic and stable isotope ratios), important metadata about the analytical values, such as uncertainty, uncertainty type, method and laboratory.
Journal ArticleDOI
MPI-DING reference glasses for in situ microanalysis: New reference values for element concentrations and isotope ratios
Klaus Peter Jochum,Brigitte Stoll,K. Herwig,Matthias Willbold,Albrecht W. Hofmann,Marghaleray Amini,Marghaleray Amini,Susanne Aarburg,Wafa Abouchami,Eric Hellebrand,Beate Mocek,Ingrid Raczek,Andreas Stracke,Olivier Alard,Olivier Alard,Claudia Bouman,Stefan Becker,Marc Dücking,Helene Brätz,Reiner Klemd,D. de Bruin,Dante Canil,D. H. Cornell,Cees-Jan de Hoog,Claude Dalpé,Leonid V. Danyushevsky,Anton Eisenhauer,Yongjun Gao,Yongjun Gao,Jonathan E. Snow,Jonathan E. Snow,Nora Groschopf,Detlef Günther,Christopher Latkoczy,Marcel Guillong,Erik H. Hauri,Heidi E. Höfer,Yann Lahaye,Kersten H Horz,Dorrit E. Jacob,Dorrit E. Jacob,Simone A Kasemann,Adam J.R. Kent,Thomas Ludwig,Thomas Zack,Paul R.D. Mason,Anette Meixner,Martin Rosner,Keiji Misawa,Barbara P. Nash,Jörg A. Pfänder,Jörg A. Pfänder,Wayne R. Premo,Weidong Sun,Weidong Sun,Massimo Tiepolo,Riccardo Vannucci,Torsten Vennemann,Torsten Vennemann,Dave Wayne,Jon Woodhead +60 more
TL;DR: In this paper, the authors present new analytical data of major and trace elements for the geological MPI-DING glasses KL2-G, ML3B-G and ATHO-G.
Journal ArticleDOI
Consensus Values and Weighting Factors.
Robert C. Paule,John Mandel +1 more
TL;DR: A method is presented for the statistical analysis of sets of data which are assembled from multiple experiments that recognizes the existence of both within group and between group variabilities, and calculates appropriate weighting factors based on the observed variability for each group.