Results 21 to 30 of about 4,593 (162)

Determination of Copper Isotope Composition of Soil Reference Materials by MC-ICP-MS

open access: yesYankuang ceshi, 2021
BACKGROUND In recent years, copper isotopes have been widely applied in supergene environments and biogeochemical processes, acting as novel tracers for soil pollution and biogeochemical cycles during pedogenesis.
LIU Wan, LI Dan-dan, LIU Sheng-ao
doaj   +1 more source

Copper Isotopic Analysis in Geological and Biological Reference Materials by MC‐ICP‐MS [PDF]

open access: yesGeostandards and Geoanalytical Research, 2020
The characterisation of relative copper isotope amount ratios (δ65Cu) helps constrain a variety of geochemical processes occurring in the geosphere, biosphere and hydrosphere. The accurate and precise determination of δ65Cu in matrix reference materials is crucial in the effort to validate measurement methods.
Sullivan, Kaj   +5 more
openaire   +3 more sources

Evaluation of lead isotope compositions of NIST NBS 981 measured by thermal ionization mass spectrometer and multiple-collector inductively coupled plasma mass spectrometer

open access: yesSolid Earth Sciences, 2016
Because Pb isotopes can be used for tracing, they are widely used in many disciplines. The detection and analysis of Pb isotopes of bulk samples are usually conducted using thermal ionization mass spectrometer (TIMS) and multiple-collector inductively ...
Honglin Yuan   +9 more
doaj   +1 more source

Pollution of water resources and application of ICP-MS techniques for monitoring and management—A comprehensive review

open access: yesGeosystems and Geoenvironment, 2023
Different natural and anthropogenic processes cause pollution of various water bodies worldwide creating numerous health problems for humans. This causes serious concern as water is a basic necessity to all living beings, and needs to be adequately ...
V. Balaram   +4 more
doaj   +1 more source

Determination of the isotopic composition of tungsten using MC-ICP-MS

open access: yesAnalytica 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

In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits

open access: yesYankuang ceshi, 2020
BACKGROUND Uranium mineral dating has been difficult to ascertain in mineralization chronology. With the development of in situ U-Pb isotope dating technology, it is possible to directly date ore minerals (uranium minerals).
XIAO Zhi-bin   +6 more
doaj   +1 more source

A Review on the Progress of Purification Techniques for High Precision Determination of Cr Isotopes in Geological Samples

open access: yesYankuang ceshi, 2019
BACKGROUND With the development of Multi-collector Thermal Ionization Mass Spectrometry (MC-TIMS) and Multi-collector Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS), Cr isotopes had been successfully measured at a high resolution.
SHI Kai   +4 more
doaj   +1 more source

The Principle and Application of "On Peak Zero" Correction in MC-ICP-MS Analysis

open access: yesYankuang ceshi, 2022
BACKGROUND Multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) has been widely applied to accurate and precise measurements of isotope ratios due to its high sample throughput, strong ionization ability of ICP sources and high mass ...
WANG Jin, BIAN Xiaopeng, YANG Tao
doaj   +1 more source

Heavy metals and Zn isotope ratios in the snow of the Karabash copper smelting area (Southern Urals, Russia) [PDF]

open access: yesE3S 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

In Situ Ti Isotopic Measurements by Laser Ablation MC-ICP-MS

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2009
We have been developing Laser Ablation Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) technique to measure titanium isotopic composition in situ. A principal aim of this work is to search for isotopic heterogeneities larger than
Hsin-Wei Chen   +3 more
doaj   +1 more source

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