Knowledge Base

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  • MC-ICPMS
  • Neptune Plus
  • S isotopes
  • Human Sersum

Sulfur Isotope Measurement in Human Serum

Emmanuelle Albalat, Philippe Telouk and Francis Albarède

ENS, Lyon, France

AN30300

Goal: The present note describes a method allowing for precise and accurate sulfur isotope measurements on small aliquots of human serum and plasma. This method can also be applied to a broad range of biological samples, such as whole blood, urine or organs. The measurements were done on a Thermo Scientific Neptune Plus Multicollector ICP-MS .

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  • Triton Plus
  • Neptune Plus
  • 1013 ohm amplifiers

New Design 1013 ohm Amplifiers for Measurement of Small Ion Beam Currents

Claudia Bouman (1), Anne Trinquier (1), Nicholas Lloyd (1), Johannes Schwieters (1), Janne Koornneef (2) and Gareth Davies (2)

1) VU University, Amsterdam, The Netherlands, 2) Thermo Fisher Scientific, Bremen, Germany

AN30282

Goal: Here we present newly developed amplifiers equipped with 1013 ohm feedback resistors for the Thermo Scientific™ Triton Plus™ TIMS, Neptune Plus™ MC-ICP-MS and Noble Gas product line. A revolutionary new current amplifier design compensates for settling time effects observed with high-gain current amplifiers using high ohmic resistors in the feedback loop.

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  • TIMS
  • Triton Plus
  • Nd
  • Accuracy

TIMS: Accuracy of La Jolla Nd Isotopic Data Acquired on TRITON Plus

Anne Trinquier

Thermo Fisher Scientific, Bremen, Germany

AN30281

Goal: The present study on a Thermo Scientific™ Triton Plus™ assesses the accuracy of 500 ng Nd+ load analyses on La Jolla Nd reference standard.

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  • TIMS
  • Triton Plus
  • Nd
  • 1-yr reprodubility

TIMS: Long Term Reproducibility of Nd Isotopic Data Acquired on TRITON Plus

Anne Trinquier

Thermo Fisher Scientific, Bremen, Germany

AN30280

Goal: The present study on a Thermo Scientific™ TRITON Plus™ TIMS assesses the precision and reproducibility over 1 year of Nd isotope analyses in metal form (Nd+) on double filament assemblies on one Nd standard for sample loads ranging from 500 ng to 100 ng, using 1011 ohm amplifiers, automated mode and analytical runs of about 1 hour.

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  • MC-ICPMS
  • Neptune Plus
  • High Sensitivity
  • Hf isotopes
  • Zircons

High Sensitivity Laser Ablation MC-ICP MS

Nicholas S. Lloyd (1), Claudia Bouman (1), Johannes B. Schwieters (1), Steve Shuttleworth (2) and John Roy (2)

1) Thermo Fisher Scientific, Bremen, Germany; 2) Photon Machines, Redmond, WA, USA

AN30275

Goal: This application note demonstrates that high precision 176Hf/177Hf isotope ratios can now be obtained from 25 μm diameter laser ablation spots.

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  • TIMS
  • Triton Plus
  • Cr isotopes

TIMS: High Precision Cr TRITON Plus Isotope Analysis with Virtual Amplifier

Anne Trinquier and Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

AN30274

Goal: The present study on a Thermo Scientific TRITON Plus instrument is intended to assess precision and accuracy of Cr isotopic analyses in static mode using the virtual amplifier, 1011 ohm current amplifiers, automated mode and >3 time shorter analyses compared to literature.

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  • TIMS
  • Triton Plus
  • Ca isotopes
  • Dionex ICS-3000

TIMS and Ion Chromatography: 44Ca/40Ca Analysis in Plants

Anne-Désirée Schmitt (1), Sophie Gangloff (1), Peter Stille (1), François Chabaux (1), Anne Trinquier (2) and Daniel Kutscher (2)

1) Université de Strasbourg et CNRS-UMR 7517, Strasbourg, France; 2) Thermo Fisher Scientific, Bremen, Germany

AN30270

Goal: Ca isotope analysis was achieved through high-precision mass spectrometry by TIMS and complete chromatographic separation of Ca from elements susceptible to induce isobaric interferences during mass spectrometry analysis (Mg, K, Sr).

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  • MC-ICPMS
  • Neptune Plus
  • Nuclear Safeguards
  • Uranium Isotopes

Highly-Sensitive Uranium Isotopic Analysis for Nuclear Safeguards, Using the NEPTUNE Plus with Jet Interface Option

Nicholas S. Lloyd, Claudia Bouman and Johannes B. Schwieters

Thermo Fisher Scientific, Bremen, Germany

AN30269

Goal: This application note describes the analytical performance of the Thermo Scientific™ NEPTUNE™ Plus multicollector ICP-MS (MC-ICP-MS) for measuring uranium isotopes from 2 ng uranium samples

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  • MC-ICPMS
  • Neptune Plus
  • ASTM C 1477
  • Nuclear
  • Uranium

Uranium Isotopic Analysis for the Nuclear Industry Using the Thermo Scientific NEPTUNE Plus MC-ICP-MS

Nicholas S. Lloyd, Claudia Bouman and Johannes B. Schwieters

Thermo Fisher Scientific, Bremen, Germany

AN30238

Goal: This application note describes the analytical performance of the Thermo Scientific™ NEPTUNE Plus™ for measuring uranium isotopes from low enriched uranium in NBS U-045, U-030 and U-010. The methodology follows a standard test protocol that is used within nuclear industry.

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  • TIMS
  • Triton Plus
  • Multi Ion Counting
  • Osmium Isotopes

New Compact Discrete Dynode Multipliers Integrated into the Thermo Scientific TRITON Variable Multicollector Array

D. Tuttas, J.B. Schwieters, C. Bouman and M. Deerberg

Thermo Fisher Scientific, Bremen, Germany

AN30192

Goal: In this study we evaluate the performance of an improved Multi Ion Counting (MIC) setup for Os isotope ratio measurements using an array of new Compact Discrete Dynode (CDD) multipliers installed into the Thermo Scientific TRITON TIMS

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  • MC-ICPMS
  • Neptune Plus
  • Jet Interface
  • High Sensitivity

NEPTUNE and NEPTUNE Plus: Breakthrough in Sensitivity using a Large Interface Pump and New Sample Cone

Claudia Bouman, Michael Deerberg and Johannes B. Schwieters

Thermo Fisher Scientific, Bremen, Germany

AN30187

Goal: This application note reports the sensitivity enhancements Among the new features are an improved pumping capacity option at the interface and a new sample cone

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  • MC-ICPMS
  • Neptune
  • Element XR
  • Zircons
  • LASS

Simultaneous in situ Analysis of U-Pb Age and Hf Isotopes of Zircon by Laser Ablation Sector-Field (MC-) ICP-MS

J. B. Schwieters (1), C. Bouman (1), M.Deerberg (1), J.D.Wills (1) ND A. Gerdes (2)

1) Thermo Fisher Scientific, Bremen, Germany, 2) Institut für Geowissenschaften, Johann Wolfgang Goethe Universität, Frankfurt am Main, Germany

AN30170

Goal: In order to overcome the limitations of sequential sampling of U-Th-Pb and Hf isotopes from different sites in zircons, a fast scanning single collector and a multicollector inductive coupled plasma mass spectrometer have been coupled in parallel to a New Wave UP213 213 nm UV laser ablation system.

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  • MC-ICPMS
  • Neptune
  • High Precision
  • Sr, Nd, Hf isotopes

High Precision Isotope Ratio Measurements of Sr, Nd and Hf

Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

AN30158

Goal: The purpose of this study is to explore the achievable external reproducibility of the elements Sr, Nd and Hf on the NEPTUNE under different experimental conditions.

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  • TIMS
  • Triton
  • 1012 ohm
  • Small Samples

Improvements in TIMS High Precision Isotope Ratio Measurements for Small Sample Sizes

Dietmar Tuttas, Johannes Schwieters, Norbert Quaas and Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

AN30136

Goal: In this study, we aim to narrow the gap between ion counting and Faraday cup measurements by using a new set of current amplifiers with Tera-Ohm feedback resistors (1012 Ω), instead of the standard 1011 Ω eedback resistors.

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  • MC-ICPMS
  • Neptune
  • Interference Correction
  • Nd & Sm isotopes

Interference Corrections in Isotope Ratio Measurements Using MC-ICP-MS: Examples for Nd-Sm

Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

AN30111

Goal: We describe and compare the results from three strategies for performing interference corrections, using Nd-Sm data measured on the Thermo Scientific NEPTUNE MC-ICP-MS