scholarly journals Gerald J. Wasserburg (1927–2016)

Eos ◽  
2017 ◽  
Author(s):  
Stein Jacobsen ◽  
Dimitri Papanastassiou ◽  
Donald DePaolo
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Isotope Ratios ◽  
Lunar Samples

A leading geochemist who became well known for creating the first high-precision mass spectrometer, called Lunatic I, that measured isotope ratios in lunar samples from the Apollo missions.

scholarly journals Analysis of high-precision vanadium isotope ratios by medium resolution MC-ICP-MS

2016 ◽  
Vol 31 (2) ◽  
pp. 531-536 ◽  
Author(s):  
Sune G. Nielsen ◽  
Jeremy D. Owens ◽  
Tristan J. Horner
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Ratios ◽  
Mass Resolution ◽  
New Method ◽  
Inductively Coupled ◽  
Medium Resolution ◽  
Medium Mass ◽  
Icp Ms

We present and verify a new method to measure vanadium isotope ratios using a Thermo Scientific Neptune multi-collector inductively-coupled plasma mass spectrometer (MC-ICP-MS) operated in medium mass resolution mode.

Precise measurement of stable potassium isotope ratios using a single focusing collision cell multi-collector ICP-MS

2016 ◽  
Vol 31 (4) ◽  
pp. 1023-1029 ◽  
Author(s):  
Weiqiang Li ◽  
Brian L. Beard ◽  
Shilei Li
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Precise Measurement ◽  
Isotope Ratios ◽  
Collision Cell ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Isotope Ratio Measurements

High precision potassium isotope ratio measurements were made using a collision-cell equipped single focusing Multi-Collector Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS).

scholarly journals Recent Developments at the High-Precision Mass Spectrometer PENTATRAP

2017 ◽  
Author(s):  
Rima X. Schüssler ◽  
Menno Door ◽  
Alexander Rischka ◽  
Hendrik Bekker ◽  
José R. Crespo López-Urrutia ◽  
...  
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Recent Developments

scholarly journals Miniaturized, rapid separation of neodymium from ultramafic and chondritic samples prior to high precision measurements of 142,143Nd/144Nd isotope ratios by TIMS

2019 ◽  
Vol 34 (10) ◽  
pp. 2136-2146
Author(s):  
Christian Pin ◽  
Abdelmouhcine Gannoun
Keyword(s):  
High Precision ◽  
Isotope Ratios ◽  
Precision Measurements ◽  
Improved Method ◽  
Rapid Separation ◽  
Silicate Materials

An improved method is described for isolating Nd from challenging silicate materials. This scheme does not involve evaporation steps and can be performed in about 12 hours, allowing the separation of Nd from Sm, Ce and Pr with good yields.

High-precision zircon U/Pb geochronology by ID-TIMS using new 1013 ohm resistors

2016 ◽  
Vol 31 (3) ◽  
pp. 658-665 ◽  
Author(s):  
Albrecht von Quadt ◽  
Jörn-Frederik Wotzlaw ◽  
Yannick Buret ◽  
Simon J. E. Large ◽  
Irena Peytcheva ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Precision ◽  
Isotope Dilution ◽  
Thermal Ionization Mass Spectrometry ◽  
Isotope Ratios ◽  
Thermal Ionization ◽  
Ionization Mass Spectrometry ◽  
Accessory Mineral ◽  
Ionization Mass ◽  
Thermal Ionization Mass

Accessory mineral U–Pb geochronology by isotope dilution thermal ionization mass spectrometry (ID-TIMS) requires precise and accurate determinations of parent–daughter isotope ratios.

scholarly journals Isotope-Ratio and Background Corrections for Accelerator Mass Spectrometry Radiocarbon Measurements

Radiocarbon ◽  
1990 ◽  
Vol 32 (2) ◽  
pp. 135-142 ◽  
Author(s):  
D J Donahue ◽  
T W Linick ◽  
A J T Jull
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometer ◽  
Accelerator Mass Spectrometry ◽  
Isotope Ratio ◽  
Isotope Ratios ◽  
Sample Contamination ◽  
Accelerator Mass Spectrometer

We present here the method we use to convert to radiocarbon ages (14C/13C) ratios measured in the Arizona Accelerator Mass Spectrometer facility. We describe the procedures we use to convert sample and standard isotope ratios to values appropriate for calculation of radiocarbon ages. We also discuss, in some detail, corrections to account for sample contamination.

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