Results 31 to 40 of about 4,593 (162)

Simultaneous in situ determination of U‐Pb and Sm‐Nd isotopes in monazite by laser ablation ICP‐MS

Geochemistry, Geophysics, Geosystems, 2014
Results are presented for in situ simultaneous determination of U‐Pb and Sm‐Nd isotopes in monazite using the Laser Ablation Split‐Stream (LASS) method. This method uses a laser ablation system coupled to a magnetic‐sector inductively coupled plasma mass
Dylan J. Goudie, Christopher M. Fisher, John M. Hanchar, James L. Crowley, John C. Ayers   +4 more
doaj   +1 more source

Triple Isotope Fractionation Exponents of Elements Measured by MC-ICP-MS—An Example of Mg [PDF]

Analytical Chemistry, 2019
In most chemical reactions, stable isotopes are fractionated in a mass-dependent manner, yielding correlated isotope ratios in elements with three or more stable isotopes. The proportionality between isotope ratios is set by the triple isotope fractionation exponent θ that can be determined precisely for, e.g., sulfur and oxygen by IRMS, but not for ...
Michael Tatzel, Jochen Vogl, Martin Rosner, Michael J. Henehan, Thomas Tütken   +4 more
openaire   +5 more sources

Determination of Silicon Isotopic Compositions of Rock and Soil Reference Materials by MC-ICP-MS

Yankuang ceshi, 2023
BACKGROUND With the analytical technique development, the precision of Si isotopes analysis increases rapidly.Silicon isotopes are widely used in geochemistry, cosmochemistry, environmental chemistry and so on, and can be used to trace the circulation of
YANG Lin, SHI Zhen, YU Huimin, HUANG Fang   +3 more
doaj   +1 more source

Improving Precision and Signal/Noise Ratios for MC-ICP-MS

Procedia Earth and Planetary Science, 2015
AbstractHigh precision measurements of isotope ratios are improved by continuous innovations in multi-collector isotope ratio mass spectrometers. Recently, the Thermo Scientific TRITON Plus TIMS and NEPTUNE Plus MC-ICP-MS benefitted from the implementation of Faraday cup current amplifiers with 1013 ohm feedback resistors.
Breton, Thomas, Lloyd, Nicholas S., Trinquier, Anne, Bouman, Claudia, Schwieters, Johannes B.   +4 more
openaire   +1 more source

Use of Lead Isotopic Ratios as Geographical Tracer for Lambrusco PDO Wines

Molecules, 2020
In this study, the lead isotope signature was tested with the aim to verify its potential as geographic tracer for wine production and particularly for the Lambrusco PDO wines of the province of Modena (Italy).
Lisa Lancellotti, Simona Sighinolfi, Andrea Marchetti, Lorenzo Tassi   +3 more
doaj   +1 more source

Assessment of Low-Level Pu Isotope Ratio Measurements Using Multicollector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS/MS) Equipped with a Pre-Mass Filter

Applied Spectroscopy Practica
We present an initial investigation into the performance of a multicollector inductively coupled plasmamass spectrometer equipped with a pre-mass filter (Neoma MC-ICP-MS/MS) for making plutonium (Pu) isotope ratio measurements on solutions containing low
N. Alex Zirakparvar, Benjamin T. Manard, Matthew D. Darnell, Melissa L. Adkisson, Shalina C. Metzger, Brian W. Ticknor, Cole R. Hexel, Daniel R. Dunlap   +7 more
doaj   +1 more source

Precise Measurement of Tellurium Isotope Ratios in Terrestrial Standards Using a Multiple Collector Inductively Coupled Plasma Mass Spectrometry

Molecules, 2020
Precise tellurium (Te) isotope ratio measurement using mass spectrometry is a challenging task for many decades. In this paper, Te isotope ratio measurements using multi-collector inductively coupled plasma mass spectrometry (MC–ICP–MS) in terrestrial Te
Rajamanickam Murugan, Tatsuo Aono, Sarata Kumar Sahoo   +2 more
doaj   +1 more source

High‐precision isotopic characterization of USGS reference materials by TIMS and MC‐ICP‐MS [PDF]

Geochemistry, Geophysics, Geosystems, 2006
The Pacific Centre for Isotopic and Geochemical Research (PCIGR) at the University of British Columbia has undertaken a systematic analysis of the isotopic (Sr, Nd, and Pb) compositions and concentrations of a broad compositional range of U.S. Geological Survey (USGS) reference materials, including basalt (BCR‐1, 2; BHVO‐1, 2), andesite (AGV‐1, 2 ...
Weis, Dominique, Kieffer, Bruno, Maerschalk, Claude Michel, Barling, Jane, De Jong, Jeroen, Williams, Gwen A., Hanano, Diane, Pretorius, Wilma, Mattielli, Nadine, Scoates, James, Goolaerts, Arnaud, Friedman, R.M, Mahoney, J.B   +12 more
openaire   +3 more sources

Uranium in groundwater in parts of India and world: A comprehensive review of sources, impact to the environment and human health, analytical techniques, and mitigation technologies

Geosystems and Geoenvironment, 2022
Uranium concentration/contamination in groundwater is currently a subject of concern all over the world due to related severe health problems to humans, as groundwater is the main drinking water source in rural and urban India and also in several parts ...
V. Balaram, A. Rani, D.P.S. Rathore
doaj   +1 more source

Vanadium Isotope Composition of Rock Reference Materials by MC-ICP-MS

Yankuang ceshi
In order to ensure the accuracy and precision of data during the analysis of vanadium isotopes, and facilitate the comparison of data among laboratories internationally, considering the shortage of inventory for the commonly used reference materials from
Liyi XU, Huimin YU, Xin DING, Fang HUANG
doaj   +1 more source