Cadmium isotope fractionation during adsorption to Mn oxyhydroxide at low and high ionic strength

Cadmium Isotope Ratios of Standard Solutions and Geological Reference Materials Measured by MC‐ICP‐MS

“…To date, there is no fixed international measurement standard for normalising measured Cd isotopic data. In this study, NIST SRM 3108 was used as 'zero-delta' Cd reference material, which is increasingly used by recent studies (Xue et al 2012, Conway et al 2013, Wasylenki et al 2014, Martinkov a et al 2016, Wei et al 2017, Imseng et al 2018, Palk et al 2018. All Cd isotope ratio data were reported as the deviation relative to Cd reference material NIST SRM 3108, which are given in per mil (delta) notation following the equations (Coplen 2011):…”

“…with the relative abundances of 1.25%, 0.89%, 12.47%, 12.80%, 24.11%, 12.23%, 28.75% and 7.51%, respectively (Meija et al 2016). The maximum relative mass difference for is approximately 10%, which makes Cd isotope ratios a potential tool to resolve mechanisms of mass-dependent fractionation processes , Horner et al 2011, Wasylenki et al 2014 and to trace Cd oceanic cycle (Lacan et al 2006, Abouchami et al 2011, Yang et al 2012, Abouchami et al 2014, Bridgestock et al 2017, Xie et al 2017) and anthropogenic pollution sources (Cloquet et al 2006, Sivry et al 2006, Shiel et al 2007, Gao 2016, Martinkov a et al 2016 in the environment. Variations in stable Cd isotopes have been observed since 1976 (Rosman and DeLaeter 1976).…”

Weathering and vegetation controls on nickel isotope fractionation in surface ultramafic environments (Albania)

“…Cultivation of these species is therefore regarded as an alternative technique for mining (known as phytomining) or soil remediation (phytoremediation) (Chaney et al, 2007). Over the course of a year, the hyperaccumulating species extract Ni from serpentine soils and redistribute decaying organic residues to the litter, which contains a significant amount of metal that can be easily mobilized for further plant uptake or leaching (Zhang et al, 2005). An experimental investigation of Ni isotopes in a series of higher plants ranging from non-tolerant to hyperaccumulator has indicated that in hydroponics, root uptake favors light Ni isotopes from the solution pool (Deng et al, 2014).…”

Isotope Fractionation Processes of Selected Elements

“…Schmitt et al (2009) andHorner et al (2010) reported Cd isotopes for Fe-Mn crusts and demonstrated that nearly all samples were indistinguishable from oceanic deep waters. Thus, Fe-Mn crusts might potentially be used as a proxy of ancient deep-water Cd isotope composition (Wasylenki et al 2014). …”