Proposal for International Agreement on Ca Notation resulting from discussion at workshops on stable isotope measurement held in Davos (Goldschmidt 2002) and Nice (EGS-AGU-EUG 2003) [PDF]
, 2004 A proposal is made to standardise the reporting of Ca isotope data to the δ44Ca/40Ca notation (or δ44Ca/42Ca) and to adopt NIST SRM 915a as the reference ...
Bock, Barbara +8 more
core +1 more source
Heavy metals and Zn isotope ratios in the snow of the Karabash copper smelting area (Southern Urals, Russia) [PDF]
E3S Web of Conferences, 2019 This work presents the first results of winter fieldworks aimed at the assessment of heavy metal content and Zn isotope composition in the snow cover of a smelting area in South Ural. Twenty one snowpacks were sampled at the end of the winter 2018 in the
Udachin Valery +6 more
doaj +1 more source
Ultra-trace Cu isotope ratio measurements via multi-collector ICP-mass spectrometry using Ga as internal standard : an approach applicable to micro-samples [PDF]
, 2018 The capabilities of Cu isotope ratio measurements are often restricted by the small volumes of sample available and/or their low Cu concentration. In this work, an analytical approach was developed for performing Cu isotopic analysis via multi-collector ...
Costas Rodriguez, Marta +2 more
core +1 more source
Limnology and Oceanography: Methods, 2021 We tested two miniaturized extraction chromatography protocols for strontium isolation based on 300 μL (Protocol 1) and 30 μL (Protocol 2) column volumes of Sr‐Spec resin, for the simultaneous determination of 87Sr/86Sr and δ88/86Sr by MC‐ICP‐MS.
C. Argentino +3 more
semanticscholar +1 more source
Early Cambrian U-Pb zircon age and Hf-isotope data from the Guasayán pluton, Sierras Pampeanas, Argentina: implications for the northwestern boundary of the Pampean arc [PDF]
, 2016 An Early Cambrian pluton, known as the Guasayán pluton, has been identified in the central area of Sierra de Guasayán, northwestern Argentina. A U?Pb zircon Concordia age of 533 ± 4 Ma was obtained by LA-MC-ICP-MS and represents the first report of ...
Alasino, Pablo Horacio +8 more
core +2 more sources
High-precision measurements of seawater Pb isotope compositions by double spike thermal ionization mass spectrometry [PDF]
, 2014 A new method for the determination of seawater Pb isotope compositions and concentrations was developed, which combines and optimizes previously published protocols for the separation and isotopic analysis of this element.
Bridgestock, L +4 more
core +2 more sources
Determination of the isotopic composition of tungsten using MC-ICP-MS
Analytica Chimica Acta, 2019 The processes of planetary accretion or formation of the Earth and other celestial objects can be studied by using the 182Hf-182W chronometer which requires precise measurements of tungsten isotope ratios. Many comparative measurements for the isotopic composition of tungsten have been performed using either thermal ionization mass spectrometry (TIMS ...
Zhang, Rouxi +5 more
openaire +3 more sources
Century-scale trends and seasonality in pH and temperature for shallow zones of the Bering Sea [PDF]
, 2015 No records exist to evaluate long-term pH dynamics in high-latitude oceans, which have the greatest probability of rapid acidification from anthropogenic CO2 emissions.
Dietze, Heiner +7 more
core +1 more source
, 2021 Antimony isotopes have been recently used as geochemical tracers for archeological or environmental purposes. The purification of antimony in samples with a low Sb concentration and a complex matrix is a critical step to measure the 123Sb/121Sb ratio by ...
F. Colin +3 more
semanticscholar +1 more source
Determination of Plutonium and Uranium Radionuclides in Glacier Ice Samples by MC-ICP-MS
CHIMIA, 2020 A radiochemical procedure for the determination of plutonium (Pu) and uranium (U) radionuclides in ice samples by multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS) is presented.
Stefan Röllin +3 more
doaj +1 more source