Results 21 to 30 of about 81,493 (230)

New Calcium Carbonate Nano‐particulate Pressed Powder Pellet (NFHS‐2‐NP) for LA‐ICP‐OES, LA‐(MC)‐ICP‐MS and µXRF

Geostandards and Geoanalytical Research, 2022
A new matrix‐matched reference material has been developed – NFHS‐2‐NP (NIOZ Foraminifera House Standard‐2‐Nano‐Pellet) – with element mass fractions, and isotope ratios resembling that of natural foraminiferal calcium carbonate.
W. Boer, Simon Nordstad, Michael Weber, R. Mertz‐Kraus, B. Hönisch, J. Bijma, M. Raitzsch, Dorothee Wilhelms‐Dick, G. Foster, H. Goring-Harford, D. Nürnberg, F. Hauff, H. Kuhnert, F. Lugli, Howie Spero, Martin Rosner, Piet van Gaever, L. de Nooijer, G. Reichart   +18 more
semanticscholar   +1 more source

MC ICP-MS δ 34SVCDT measurement of dissolved sulfate in environmental aqueous samples after matrix separation by means of an anion exchange membrane [PDF]

Anal Bioanal Chem, 2015
Ondrej Hanousek, Thomas Prohaska, Torsten W. Berger   +2 more
core   +2 more sources

Single Spot Rb‐Sr Isochron Dating of Biotite by LA‐MC‐ICP‐MS/MS

Geostandards and Geoanalytical Research, 2023
Laser ablation tandem mass spectrometry is a burgeoning field for in situ Rb‐Sr geochronology. Here, we determined simultaneous isotope ratios of 87Sr/86Sr and 87Rb/86Sr in metamorphic biotite from western Maine, using an ESL™ imageGEO™193 excimer laser ...
A. Cruz‐Uribe, G. Craig, J. Garber, Bence Paul, Cemil Arkula, C. Bouman   +5 more
semanticscholar   +1 more source

Simultaneous In Situ Determination of Pb Isotope Ratios and Trace Element Concentrations in Melt Inclusions by LASS‐ICP‐MS

Geochemistry, Geophysics, Geosystems, 2021
Melt inclusions provide unique insights into magmatic sources and processes. This study presents a method for simultaneously measuring Pb isotopes and trace elements in melt inclusions using a 193 nm excimer laser ablation system coupled to a multiple ...
Le Zhang, Sheng‐Ping Qian, Nan Li, Lu‐Bing Hong, Yan‐Qiang Zhang, Zhong‐Yuan Ren   +5 more
doaj   +1 more source

Alzheimer’s Disease and Age-Related Changes in the Cu Isotopic Composition of Blood Plasma and Brain Tissues of the APP^NL-G-F Murine Model Revealed by Multi-Collector ICP-Mass Spectrometry

Biology, 2023
Alzheimer’s’ disease (AD) is characterized by the formation of β-amyloid (Aβ) plaques and neurofibrillary tangles of tau protein in the brain. Aβ plaques are formed by the cleavage of the β-amyloid precursor protein (APP).
Kasper Hobin, Marta Costas-Rodríguez, Elien Van Wonterghem, Roosmarijn E. Vandenbroucke, Frank Vanhaecke   +4 more
doaj   +1 more source

Rapid Isotopic Analysis of Uranium Particles by Laser Ablation MC-ICP-MS

Journal of Analytical Atomic Spectrometry, 2023
We present a methodology for characterizing the isotopic composition of uranium (U) in µm-scale particles by laser ablation multicollector-inductively coupled plasma-mass spectrometry (MC-ICP-MS).
J. Wimpenny, K. M. Samperton, P. Sotorrio, M. Wellons, S. Scott, D. Willingham, K. Knight   +6 more
semanticscholar   +1 more source

Boron isotope ratio determination in carbonates /via/ LA-MC-ICP-MS using soda-lime glass standards as reference material [PDF]

, 2010
A new in situ method using LA-MC-ICP-MS (193 nm excimer laser) for the determination of stable boron isotope ratios (δ11B) in carbonates was developed.
Aggarwal, Aggarwal, Agnes Heinemann, Anton Eisenhauer, Dickson, Duchateau, Eggins, Fietzke, Fietzke, Florian Böhm, Foster, Foster, Gaillardet, Hemming, Hemming, Hemming, Heumann, Hönisch, Isabelle Taubner, Jan Fietzke, Jonathan Erez, Kakihana, Kasemann, Kasemann, Klochko, Klochko, le Roux, Lécuyer, Pagani, Palmer, Reynaud, Rollion-Bard, Rollion-Bard, Sanyal, Schmitt, Spivack, Spivack, Vengosch, Vengosch, Zeebe   +39 more
core   +1 more source

High‐precision isotopic analysis of essential mineral elements: capabilities as a diagnostic/prognostic tool

View, 2021
All elements with two or more isotopes show natural variation in their isotopic composition as a result of the isotope fractionation that accompanies (bio)chemical reactions and (bio)physical processes.
Frank Vanhaecke, Marta Costas‐Rodríguez   +1 more
doaj   +1 more source

Geological characteristics and metallogenic age of Tengshan'ao Sn deposit in Dayishan of South Hunan and its prospecting significance

Solid Earth Sciences, 2021
The Tengshan'ao Sn deposit, located at the Dayishan ore field, Nanling Range, is one of the recently explored deposits in this region. In this study, LA-MC-ICP-MS cassiterite U–Pb and muscovite 40Ar-39Ar isotopic dating analyses for altered granite-type ...
Zunzun Zhang, Yongyun Ning, Youyue Lu, Jingya Cao, Jianming Fu, Zhuang Zhao, Jian Guo, Liyan Ma, Zhengwei Qin, Jianfeng Li   +9 more
doaj   +1 more source

Sr-isotope analysis of speleothems by LA-MC-ICP-MS: High temporal resolution and fast data acquisition [PDF]

, 2017
Speleothems are well established climate archives. A wide array of geochemical proxies, including stable isotopes and trace elements are present within speleothems to reconstruct past climate variability.
Breitenbach, Sebastian, Jochum, Klaus Peter, Oster, Jessica, Scholz, Denis, Wassenburg, Jasper A., Weber, Michael   +5 more
core   +3 more sources