First vanadium isotope analyses of V-rich minerals by femtosecond laser ablation and solution-nebulization MC-ICP-MS

Schuth, Stephan; Horn, I.; Brüske, Annika; Wolff, Paul Eric; Weyer, Stefan

doi:10.1016/j.oregeorev.2016.09.028

Cited by 41 publications

(27 citation statements)

References 104 publications

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“…The natural 51 V/ 50 V ratio of ca. 400 is high when compared to isotope ratios of other metals like Cu, Tl, and U, but subtle V isotope variations are nevertheless resolvable with high-resolution-multi collector-inductively coupled plasma-mass spectrometry (MC-ICP-MS, e.g., Prytulak et al, 2011;Nielsen et al, 2011;Wu et al, 2016;Schuth et al, 2017). Vanadium isotope analyses face two major challenges: (i) limited control of mass interferences and instrumental mass bias because only two stable isotopes of V exist, and (ii) the requirement of high-degree V purification because of the interferences of 50 Cr and 50 Ti on the low-abundance 50 V. The V isotope variations are given in the delta notation as δ 51 V, i.e.…”

Section: Vanadium Isotope Systematicsmentioning

confidence: 99%

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Vanadium and its isotope composition of river water and seawater: Analytical improvement and implications for vanadium isotope fractionation

et al. 2019

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Section: Vanadium Isotope Systematicsmentioning

confidence: 99%

“…3 to remove most of the major elements as well as Ti, followed by anion resin (Bio-Rad® AG 1X8, 200-400 mesh) in the two column steps 3 and 4 in Fig. 3 to remove Cr and remains of other elements (like alkali metals, see also Schuth et al, 2017).…”

Section: Vanadium Separation From River Water and Filtersmentioning

confidence: 99%

Vanadium and its isotope composition of river water and seawater: Analytical improvement and implications for vanadium isotope fractionation

et al. 2019

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“…Vanadium is widely used in metallurgy and chemical industries due to its brilliant mechanical properties, good corrosion resistance to acid and alkali, good abrasion resistance, etc. [21,22]. For the past few years, vanadium pentoxide, one of the most common vanadic oxides, was mainly used as an additive for the improvement of the wear and corrosion resistances of the substrate in various surface treatment processes [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effect of V2O5 Additive on Micro-Arc Oxidation Coatings Fabricated on Magnesium Alloys with Different Loading Voltages

Wang

2020

Metals

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Effect of V2O5 additive in silicate-containing electrolyte on AZ91D magnesium alloys treated by micro-arc oxidation (MAO) technology under different loading voltages was investigated. The results showed that vanadium was well up-taken into the coating chemically. Moreover, a new phase of MgV2O4 with spinel structure was obtained in MAO coatings due to V2O5 added into the electrolyte. The MgV2O4 phase was responsible for the coatings exhibiting brown color and also was beneficial to improving the anti-corrosion property. In spotting tests, the corrosion resistances of coatings prepared under the high voltage are about 6–9 times higher than those of the low voltage because of the thicker coatings of the former. In potentiodynamic polarization tests, the coatings’ corrosion resistances were improved with the addition of V2O5, which was more significant under the low voltage than that under the high voltage. When the concentration of V2O5 was 0.2 g/L, the corrosion current density of the coating was the lowest, which means that the coating’s corrosion resistance under the low voltage is the best. Hence, it is necessary to carry out targeted design of the coating’s microstructure according to the different applications.

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“…Isotope compositions were determined using standard sample bracketing with the Alfa Aesar reference solution that is defined as  51 V = 0‰ (92). Each unknown sample was interspersed with a pure V reference solution from BDH Chemicals that has now been measured in nine separate studies with the indistinguishable  51 V = −1.18 ± 0.02‰ (2SE) (21,34,48,(92)(93)(94)(95)(96)(97). The mass spectrometer was operated in medium resolution mode.…”

Section: Methodsmentioning

confidence: 99%

Fossil records of early solar irradiation and cosmolocation of the CAI factory: A reappraisal

et al. 2021

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Calcium-aluminum-rich inclusions (CAIs) in meteorites carry crucial information about the environmental conditions of the nascent Solar System prior to planet formation. Based on models of 50V-10 Be co-production by in-situ irradiation, CAIs are considered to have formed within ~0.1 AU from the proto-Sun. Here, we present vanadium (V) and strontium (Sr) isotopic co-variations in fine-and coarse-grained CAIs and demonstrate that kinetic isotope effects during partial condensation and evaporation best explain V isotope anomalies previously attributed to solar particle irradiation. We also report initial excesses of 10 Be and argue that CV CAIs possess essentially a homogeneous level of 10 Be, inherited during their formation. Based on numerical modeling of 50V-10 Be co-production by irradiation, we show that CAI formation during protoplanetary disk build-up likely occurred at greater heliocentric distances than previously considered, up to planet-forming regions (~1AU), where solar particle fluxes were sufficiently low to avoid substantial in-situ irradiation of CAIs.

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First vanadium isotope analyses of V-rich minerals by femtosecond laser ablation and solution-nebulization MC-ICP-MS

Cited by 41 publications

References 104 publications

Vanadium and its isotope composition of river water and seawater: Analytical improvement and implications for vanadium isotope fractionation

Vanadium and its isotope composition of river water and seawater: Analytical improvement and implications for vanadium isotope fractionation

Effect of V2O5 Additive on Micro-Arc Oxidation Coatings Fabricated on Magnesium Alloys with Different Loading Voltages

Fossil records of early solar irradiation and cosmolocation of the CAI factory: A reappraisal

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