Geostandards and Geoanalytical Research

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Determination of Lithium Contents in Silicates by Isotope Dilution ICP‐MS and its Evaluation by Isotope Dilution Thermal Ionisation Mass Spectrometry
Geostandards and Geoanalytical Research - Tập 28 Số 3 - Trang 371-382 - 2004
Takuya Moriguti, Akio Makishima, Eizo Nakamura
A precise and simple method for the determination of lithium concentrations in small amounts of silicate sample was developed by applying isotope dilution‐inductively coupled plasma‐mass spectrometry (ID‐ICP‐MS). Samples plus a Li spike were digested with HF‐HClO4, dried and diluted with HNO3, and measured by ICP‐MS. No matrix effects were observed...... hiện toàn bộ
Determination of Reference Values for NIST SRM 610–617 Glasses Following ISO Guidelines
Geostandards and Geoanalytical Research - Tập 35 Số 4 - Trang 397-429 - 2011
Klaus Peter Jochum, Ulrike Weis, Brigitte Stoll, Giovanna Guidoboni, Qichao Yang, Ingrid Raczek, Dorrit E. Jacob, Andreas Stracke, Karin Birbaum, Daniel A. Frick, Detlef Günther, Jacinta Enzweiler
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...... hiện toàn bộ
NanoSIMS: Technical Aspects and Applications in Cosmochemistry and Biological Geochemistry
Geostandards and Geoanalytical Research - Tập 37 Số 2 - Trang 111-154 - 2013
P. Höppe, Sharon Cohen, Anders Meibom
The NanoSIMS ion probe is a new‐generation SIMS instrument, characterised by superior spatial resolution, high sensitivity and multi‐collection capability. Isotope studies of certain elements can be conduct...... hiện toàn bộ
Calcium Isotopic Fractionation and Compositions of Geochemical Reference Materials
Geostandards and Geoanalytical Research - Tập 41 Số 4 - Trang 675-688 - 2017
Fang Liu, Hong Zhu, Xin Li, Gui Q. Wang, Zhao F. Zhang
High‐precision calcium isotopic compositions of a set of geological reference materials from the IAG (OU‐6), ANRT (UB‐N), ... hiện toàn bộ
A Preliminary Appraisal of Seven Natural Zircon Reference Materials for In Situ Hf Isotope Determination
Geostandards and Geoanalytical Research - Tập 29 Số 2 - Trang 183-195 - 2005
Jon Woodhead, Janet Hergt
There is a growing need for new zircon reference materials for in situ Hf‐isotope analysis by laser ablation‐multicollector inductively coupled plasma‐mass spectrometry (LA‐MC‐ICP‐MS). In this contribution we document the results of a preliminary investigation of seven natural zircons, conducted in order to test their suitability in this regard. Solution MC‐ICP‐MS data on separated Lu and ...... hiện toàn bộ
VizualAge: Một phương pháp mới trong việc giảm dữ liệu U‐Pb địa sinh học bằng laser ablation ICP‐MS Dịch bởi AI
Geostandards and Geoanalytical Research - Tập 36 Số 3 - Trang 247-270 - 2012
Joseph A. Petrus, Balz S. Kamber
VizualAge, một công cụ phần mềm máy tính mới để phân tích dữ liệu U‐Pb thu được bằng phương pháp ICP‐MS hấp dẫn laser, đã được phát triển. Nó bao gồm một sơ đồ giảm dữ liệu (DRS) cho Iolite (một công cụ phân tích dữ liệu khối phổ chung) cũng như các quy trình trực quan hóa. Ngoài các tuổi U/Pb và Th/Pb được tính toán bởi DRS địa sinh học U‐Pb của Iolite, VizualAge cũng tính toán tuổi ... hiện toàn bộ
#U‐Pb địa sinh học #laser ablation #ICP‐MS #phần mềm phân tích #số liệu zircon
Comprehensive Chemical and Isotopic Analyses of Basalt and Sediment Reference Materials
Geostandards and Geoanalytical Research - Tập 35 Số 1 - Trang 125-143 - 2011
Catherine Chauvel, Sarah Bureau, Christèle Poggi
Geochemical studies of geological samples require the precise determination of their major and trace element contents and, when measured, of their isotopic compositions. It is now commonly accepted that the accuracy and precision of geochemical analyses are best estimated by the concomitant analysis of international reference materials run as unknown samples. Although the composition of a ...... hiện toàn bộ
A Proposal for the Publication of Geochemical Data in the Scientific Literature
Geostandards and Geoanalytical Research - Tập 36 Số 3 - Trang 225-230 - 2012
Philip J. Potts
A proposal is set out for the information and details that should accompany the publication of geochemical data in the research literature. This proposal is based on the principle that sufficient detail must be included both to allow independent replication of the results and for reviewers to confirm that data are fit‐for‐purpose in supporting the way in which they have been interpreted. I...... hiện toàn bộ
Production and Certification of a Unique Set of Isotope and Delta Reference Materials for Boron Isotope Determination in Geochemical, Environmental and Industrial Materials
Geostandards and Geoanalytical Research - Tập 36 Số 2 - Trang 161-175 - 2012
Jochen Vogl, Martin Rösner
Isotopic reference materials are essential to enable reliable and comparable isotope data. In the case of boron only a very limited number of such materials is available, thus preventing adequate quality control of measurement results and validation of analytical procedures. To address this situation a unique set of two boron isotope reference materials (ERM‐AE102a and ‐AE104a) and three o...... hiện toàn bộ
MC‐ICP‐MS Isotope Measurements with Direct Injection Nebulisation (d‐DIHEN): Optimisation and Application to Boron in Seawater and Carbonate Samples
Geostandards and Geoanalytical Research - Tập 35 Số 1 - Trang 75-88 - 2011
P. Bonville, Julien Bouchez, Guillaume Paris
We report here an optimisation of the demountable direct injection high efficiency nebuliser (d‐DIHEN) for isotopic measurements with a Neptune (ThermoFisher Scientific, Bremen, Germany) multi‐collector inductively coupled plasma‐mass spectrometer (MC‐ICP‐MS) and describe a method for boron isotopic ratio determination. With direct injection nebulisation 100% of the analyte was introduced ...... hiện toàn bộ
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