High precision δ17O isotope measurements of oxygen from silicates and other oxides: method and applications

1999 ◽  
Vol 13 (13) ◽  
pp. 1211-1217 ◽  
Author(s):  
M. F. Miller ◽  
I. A. Franchi ◽  
A. S. Sexton ◽  
C. T. Pillinger
Keyword(s):  
High Precision ◽  
Isotope Measurements

A new method for TIMS high precision analysis of Ba and Sr isotopes for cosmochemical studies

2017 ◽  
Vol 32 (7) ◽  
pp. 1388-1399 ◽  
Author(s):  
Elsa Yobregat ◽  
Caroline Fitoussi ◽  
Bernard Bourdon
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
High Precision ◽  
Thermal Ionization Mass Spectrometry ◽  
New Method ◽  
Ionization Mass ◽  
Sr Isotopes ◽  
Sr Resin ◽  
Thermal Ionization Mass ◽  
Isotope Measurements

A new protocol using Eichron™ Sr-resin for high-resolution Sr and Ba isotope measurements using thermal ionization mass spectrometry for cosmochemical samples.

scholarly journals Maintaining consistent traceability in high precision isotope measurements of CO<sub>2</sub>: verifying atmospheric trends of δ<sup>13</sup>C

2012 ◽  
Vol 5 (3) ◽  
pp. 4003-4040 ◽  
Author(s):  
L. Huang ◽  
A. Chivulescu ◽  
D. Ernst ◽  
W. Zhang ◽  
Y.-S. Lee
Keyword(s):  
High Precision ◽  
Mean Value ◽  
Rate Of Change ◽  
Atmospheric Co2 ◽  
Precision Measurements ◽  
Total Change ◽  
History Of ◽  
Ambient Measurements ◽  
Isotope Measurements ◽  
Δ13c And Δ18o

Abstract. Maintaining consistent traceability of high precision measurements of CO2 isotopes is critical in being able to observe accurate atmospheric trends of δ13C (CO2). Although a number of laboratories/organizations around the world have been involved in baseline measurements of atmospheric CO2 isotopes for several decades, the reports on their traceability measures are rare. In this paper, a principle and an approach for the traceability maintenance of high precision isotope measurements (δ13C and δ18O) in atmospheric CO2 is described. The uncertainties of the traceability have been estimated based on the history of annual calibrations over the last 10 yr. The overall uncertainties of CO2 isotope measurements for individual ambient samples carried out by our program at Environment Canada are estimated (excluding the uncertainty associated with the sampling). The values are 0.02‰ and 0.05‰ in δ13C and δ18O, respectively, close to the WMO targets for data compatibility. The annual rate of change in δ13C of the primary anchor used in our program (which is the laboratory standard linking ambient measurements back to the primary VPDB scale) is close to zero (−0.0016 ± 0.0012‰ per year) over the period of 10 yr (2001–2011). The average annual decreasing rate of δ13C in air CO2 measurements at Alert over the period from 1999 to 2010 has been confirmed and verified, which is −0.025 ± 0.003‰ per year. The total change of δ13C in the annual mean value during this period is ∼−0.27‰. The concept of "Big Delta" is introduced and its role in maintaining traceability of the isotope measurements is described and discussed extensively. Finally, the challenges and a strategy for maintaining traceability are also discussed and suggested.

High‐Precision, High‐Accuracy Oxygen Isotope Measurements of Zircon Reference Materials with the SHRIMP‐SI

2019 ◽  
Vol 44 (1) ◽  
pp. 85-102 ◽  
Author(s):  
Janaína N. Ávila ◽  
Trevor R. Ireland ◽  
Peter Holden ◽  
Peter Lanc ◽  
Andrew Latimore ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
High Precision ◽  
Reference Materials ◽  
High Accuracy ◽  
Isotope Measurements

High‐Precision Barium Isotope Measurements of Carbonates by MC ‐ ICP ‐ MS

2019 ◽  
Vol 43 (2) ◽  
pp. 291-300 ◽  
Author(s):  
Zhen Zeng ◽  
Xiaohua Li ◽  
Yi Liu ◽  
Fang Huang ◽  
Hui‐Min Yu
Keyword(s):  
High Precision ◽  
Icp Ms ◽  
Barium Isotope ◽  
Isotope Measurements

High precision isotope measurements reveal poor control of copper metabolism in Parkinsonism

Metallomics ◽  
2013 ◽  
Vol 5 (2) ◽  
pp. 125 ◽  
Author(s):  
F. Larner ◽  
B. Sampson ◽  
M. Rehkämper ◽  
D. J. Weiss ◽  
J. R. Dainty ◽  
...  
Keyword(s):  
High Precision ◽  
Copper Metabolism ◽  
Poor Control ◽  
Isotope Measurements

High-precision barium isotope measurements by MC-ICP-MS

2015 ◽  
Vol 30 (11) ◽  
pp. 2307-2315 ◽  
Author(s):  
Xiaoyun Nan ◽  
Fei Wu ◽  
Zhaofeng Zhang ◽  
Zhenhui Hou ◽  
Fang Huang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Precision ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Precision Method ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Barium Isotope ◽  
Isotope Measurements

This article presents a high precision method for Ba isotope measurements using multiple-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS).

Procedures for accurate U and Th isotope measurements by high precision MC-ICPMS

2007 ◽  
Vol 264 (2-3) ◽  
pp. 97-109 ◽  
Author(s):  
Dirk L. Hoffmann ◽  
Julie Prytulak ◽  
David A. Richards ◽  
Tim Elliott ◽  
Christopher D. Coath ◽  
...  
Keyword(s):  
High Precision ◽  
Isotope Measurements
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