A search for variations in the relative abundance of the zinc isotopes in nature

Blix, Ragnar; Ubisch, H. von; Wickman, Frans E.

doi:10.1016/0016-7037(57)90078-9

Cited by 23 publications

(8 citation statements)

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“…One of the first attempts to resolve the natural variation of Zn stable isotope ratios was performed by Blix et al (1957), who analyzed a set of Zn minerals for their isotope composition. From a recent perspective, the precision of their method (0.1% as the difference between 64 Zn/ 68 Zn SRM and sample ratios) did not allow to find any variations in isotope compositions.…”

Section: Determination Of Zn Stable Isotopesmentioning

confidence: 99%

Metal isotope complexation with environmentally relevant surfaces: Opening the isotope fractionation black box

Komárek

Ratié

Vaňková

et al. 2021

Critical Reviews in Environmental Science and Technology

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The number of studies using various stable isotope systems for tracing contamination sources and various biogeochemical processes is rapidly rising due to the increased availability of the techniques used for isotope analyses. However, in most cases, the resulting isotope data are influenced by many processes occurring within reactive environmental compartments, e.g., soils and sediments, such as sorption, precipitation, redox changes, interactions with plants and microorganisms, etc. Therefore, isotope tracing becomes challenging as it is crucial to identify and quantify the isotope fractionation extent during separate processes in this so-called "isotope fractionation black box". The main aim of this review is to (i) summarize literature data on fractionation of selected metal isotopes (Cd, Cu, Hg, Ni, Zn) after complexation with relevant environmental surfaces, e.g., oxyhydroxides, clay minerals, natural organic matter etc., (ii) briefly describe the analytical techniques and key procedures used for the determination of such data and (iii) provide suggestions and perspectives for future research, including a critical evaluation of specific issues related to isotope analyses and especially the interpretation of results. For example, concentration equilibrium usually differs from isotope fractionation equilibrium, metal coordination chemistry in solution is crucial to decipher metal isotopic fractionation, spectroscopic data are missing, different experimental conditions are often and potential precipitation and desorption reactions are not always considered, etc. Consistent presentation of adsorption/complexation data would also be highly beneficial in future studies.

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Section: Determination Of Zn Stable Isotopesmentioning

confidence: 99%

Metal isotope complexation with environmentally relevant surfaces: Opening the isotope fractionation black box

Komárek

Ratié

Vaňková

et al. 2021

Critical Reviews in Environmental Science and Technology

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“…The first measurements of copper and zinc isotope variations in geological materials were made nearly fifty years ago (Blix et al 1957, Walker et al 1958, Shields et al 1965. However, these studies were hampered by analytical precision of ~0.1% or greater, poor when compared with the magnitude of the natural variations observed, especially for Zn.…”

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confidence: 99%

Chemical Separation and Isotopic Variations of Cu and Zn From Five Geological Reference Materials

Chapman

Mason

Weiß

et al. 2006

Geostandard Geoanalytic Res

143

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This paper presents an adapted anion exchange column chemistry protocol which allowed separation of high‐purity fractions of Cu and Zn from geological materials. Isobaric and non‐spectral interferences were virtually eliminated for consequent multiple‐collector ICP‐MS analysis of the isotopic composition of these metals. The procedure achieved ∼ 100% recoveries, thus ensuring the absence of column‐induced isotopic fractionation. By employing these techniques, we report isotopic analyses for Cu and Zn from five geological reference materials: BCR‐027 blende ore (BCR), δ65Cu = 0.52 ± 0.15‰ (n = 10) and δ66Zn = 0.33 ± 0.07‰ (n = 8); BCR‐030 calcined calamine ore (BCR), δ66Zn = ‐0.06 ± 0.09‰ (n = 8); BCR‐1 basalt (USGS), δ66Zn = 0.29 ± 0.12‰ (n = 8); NOD‐P‐1 manganese nodule (USGS), δ65Cu = 0.46 ± 0.08‰ (n = 10) and δ66Zn = 0.78 ± 0.09‰ (n = 9); SU‐1 Cu‐Co ore (CCRMP), δ65Cu = ‐0.018 ± 0.08‰ (n = 10) and δ66Zn = 0.13 ± 0.17‰ (n = 6). All uncertainties are ± 2s; copper isotope ratios are reported relative to NIST SRM‐976, and zinc isotope ratios relative to the Lyon‐group Johnson Matthey metal (batch 3‐0749 L) solution, JMC Zn. These values agree well with the limited data previously published, and with results reported for similar natural sample types. Samples were measured using a GVi IsoProbe MC‐ICP‐MS, based at the Natural History Museum, London. Long‐term measurement reproducibility has been assessed by repeat analyses of both single element and complex matrix samples, and was commonly better than ± 0.07‰ for both δ66Zn and δ65Cu.

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“…No measurements of the isotopic composition of zinc in rocks have been published, although determinations of zinc isotope ratios in zinc minerals have been reported (1). Fractionation may occur in nature and the problem is thus worth studying.…”

Section: Ratio In Rocks Andmentioning

confidence: 99%

Determination of the Zinc-68-Zinc-64 Ratio in Rocks and Minerals by Neutron Activation Analysis.

Filby¹

1964

Anal. Chem.

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A search for variations in the relative abundance of the zinc isotopes in nature

Cited by 23 publications

References 0 publications

Metal isotope complexation with environmentally relevant surfaces: Opening the isotope fractionation black box

Metal isotope complexation with environmentally relevant surfaces: Opening the isotope fractionation black box

Chemical Separation and Isotopic Variations of Cu and Zn From Five Geological Reference Materials

Determination of the Zinc-68-Zinc-64 Ratio in Rocks and Minerals by Neutron Activation Analysis.

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