Columbite-Group Minerals from New York Pegmatites: Insights from Isotopic and Geochemical Analyses
Geosciences, 2018 Columbite crystals from niobium-yttrium-fluorine (NYF) pegmatites lacking zircon or containing metamict cyrtolite were analyzed for major and minor elements (Electron Microprobe (EMP)), trace elements (Laser Ablation-Inductively Coupled Plasma-Mass ...
Marian V. Lupulescu +4 more
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High Spatial Resolution U-Pb Dating of Low-Uranium Calcite Using LA-MC-ICP-MS
Yankuang ceshiThe combination of carbonate minerals with the U-Pb isotope dating system provides direct temporal constraints for geoscientific applications. LA-MC-ICP-MS with its high sensitivity and accuracy, has been successfully applied to the high spatial ...
Chenxi ZHANG +8 more
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Study on the Analysis of Uranium-in Rat Hair by Secondary Ion Mass Spectrometry
Journal of Isotopes, 2021 Hair samples, as a non-invasive biological material, it is gradually gaining attention in the fields of nuclear forensics, environmental monitoring, occupational exposure detection, and medicine due to its certain accumulation effect on human trace ...
HU Ruixuan;SHEN Yan;LI Lili;HUANG Shenghui;ZHAO Lifei;ZHAO Yonggang
doaj
, 2013 International audienceAlthough initial studies have demonstrated the applicability of Ni isotopes for cosmochemistry and as a potential biosignature, the Ni isotope composition of terrestrial igneous and sedimentary rocks, and ore deposits remains poorly
Bekker, Andrey +4 more
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Zirconium stable isotope analysis of zircon by MC-ICP-MS: Methods and application to evaluating intra-crystalline zonation in a zircon megacryst [PDF]
, 2020 Zirconium (Zr) plays a key role in the development of phases like zircon (ZrSiO₄) and baddeleyite (ZrO₂) in magmatic systems. These minerals are crucial for the study of geologic time and crustal evolution, and their high resistivity to weathering and ...
Ibanez-Mejia, Mauricio +3 more
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Improvements to 232-thorium, 230-thorium, and 231-protactinium analysis in seawater arising from GEOTRACES intercalibration [PDF]
, 2012 The GEOTRACES program requires the analysis of large numbers of seawater samples for ^(232)Th, ^(230)Th, and ^(231)Pa. During the GEOTRACES international intercalibration exercise, we encountered unexpected difficulties with recovery and contamination of
Anderson, Robert F. +5 more
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Revista Mexicana de Ciencias Geológicas, 2017 The Lu-Hf isotope system is not only an important geochrono- meter but also a powerful tool for petrogenetic studies. To determine reliable analytical results of this system from rock and mineral samples, a protocol is established that includes ...
Reneé González-Guzmán +3 more
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Improvements in Cd stable isotope analysis achieved through use of liquid–liquid extraction to remove organic residues from Cd separates obtained by extraction chromatography [PDF]
, 2015 Organic compounds released from resins that are commonly employed for trace element separations are known to have a detrimental impact on the quality of isotopic analyses by MC-ICP-MS.
Coles, B +4 more
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A simplified procedure for the determination of stable chlorine isotope ratios (δ37Cl) using LA-MC-ICP-MS [PDF]
, 2008 Stable chlorine isotopes (37Cl, 35Cl) are considered as important tracers of geochemical processes, especially in subduction zone systems. However, high-quality chlorine isotope data are scarcely available.
Eisenhauer, Anton +3 more
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Automatic Purification of Li Isotopes from Geological Samples by High-Pressure Ion Chromatography
Yankuang ceshiHigh-quality purification of lithium (Li) is crucial in measuring 7Li/6Li ratios of whole rocks precisely by MC-ICP-MS. Many scholars have proposed traditional manual Li purification methods by cross-combining the types of eluents, types of resin, resin ...
Yini YANG +6 more
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