Paper
Performance of second generation ICP-TOFMS for (multi-)isotope ratio analysis: a case study on B, Sr and Pb and their isotope fractionation behavior during the measurements
The second generation ICP-TOFMS is subject to IIF that does not follow the known mass dependent fractionation laws and is possibly caused by non-mass dependent fractionation and/or multiple fractionation processes with varying contributions.
Paper
Determination of the isotopic composition of copper in a certified reference material HICU-1 by MC-ICP-MS using gravimetric isotope mixture calibration
An independent and fully calibrated copper isotope ratio measurement of a high-purity copper certified reference material, HICU-1, was achieved by MC-ICP-MS with use of gravimetric isotope mixture calibration.
Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions
The new Neoma MC-ICPMS/MS is equipped with a prefiltering system consisting of a double-Wien filter and a collision/reaction cell whose performances are challenged using different combinations of magnetic and electrostatic field values and adjustable slit apertures.
Paper
New methods for determination of the mass-independent and mass-dependent platinum isotope compositions of iron meteorites by MC-ICP-MS
We have developed methods to accurately determine the platinum isotope compositions of iron meteorites. These can be used to investigate processes of planetary formation and evolution, including accretion and core crystallisation.
Determination of carbon isotopes in carbonates (calcite, dolomite, magnesite, and siderite) by femtosecond laser ablation multi-collector ICP-MS
This study reports a method for in situ determination of stable carbon (δ13C‰) isotope compositions for various carbonate matrices including calcite, dolomite, magnesite and siderite by fs-LA-MC-ICP-MS with a precision of 0.37–0.68‰.
Development of methods for Mg, Sr and Pb isotopic analysis of crude oil by MC-ICP-MS: addressing the challenges of sample decomposition
In this work, methods were developed for the determination of isotope ratios of Mg, Sr and Pb in crude oil by multi-collector inductively coupled plasma-mass spectrometry.
Determining the isotopic composition of elements from the electrospray ionization mass spectra of their chemical species
Isotopic composition of elements was determined by applying a deconvolution method that we developed to electrospray mass spectra of the associated chemical species.
Paper
Absolute isotope ratios of carbon dioxide – a feasibility study
First attempts of adapting the gravimetric mixture method for absolute isotope ratios of CO2.
A cavity ion source for high-ionization efficiency neodymium isotope-ratio analyses in the geosciences
Precision in Nd isotope ratios measurements is dominated by the number of ions counted. We show that cavity ion sources can provide ion beams capable of producing much more precise Nd isotope data.
‘Blind time’ – current limitations on laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) for ultra-transient signal isotope ratio analysis and application to individual sub-micron sized uranium particles
Gaps in acquisition between integration times for MC-ICP-MS can introduce isotope ratio bias with a mixed detector array.
High-precision cerium isotope analysis by thermal ionization mass spectrometry using the Ce+ technique
A new method is presented for high-precision measurement of cerium isotope ratios in geological samples by TIMS with the Ce+ technique.
Multi-collector ICP-mass spectrometry reveals changes in the serum Mg isotopic composition in diabetes type I patients
Serum Mg shows a lighter isotopic composition in diabetes type-1 patients than in an age- and gender-matched reference population.
Coupling of an atmospheric pressure microplasma ionization source with an Orbitrap Fusion Lumos Tribrid 1M mass analyzer for ultra-high resolution isotopic analysis of uranium
Ultra-high resolution is achieved in the LS-APGD/Orbitrap Fusion Lumos Tribrid 1M coupling, with no sacrifice in sensitivity or precision.
Improved TIMS data reliability and precision with new ion source design
The ion source design of the Triton and Triton Plus Thermal Ionisation Mass Spectrometer (TIMS) has been improved to reduce the frequency and intensity of high voltage electric sparking.
A new milestone for ultra-low 236U/238U isotope ratio measurements by ICP-MS/MS
A new limit of detection for 236U/238U isotope ratios was achieved with ICP-MS/MS technology.
About this collection
This collection consists of recently published and invited contributions highlighting the rapidly developing area of high precision isotope ratio measurements by different instrumental techniques. The collection is Guest Edited by Takafumi Hirata (University of Tokyo) and Dmitriy Malinovskiy (LGC Limited). The collection remains open to new submissions and new articles will be added as they are published.