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$Equilibrium mass-dependent isotope fractionation of antimony between stibnite and Sb secondary minerals: A first-principles study$

Equilibrium mass-dependent isotope fractionation of antimony between stibnite and Sb secondary minerals: A first-principles study

Highlights First estimation of equilibrium Sb isotope fractionation factors among Sb minerals.PBEsol pseudopotential best reproduces Sb mineral lattices and Raman frequencies.Factors affecting Sb isotope fractionation: Sb oxidation > change in Sb first-neighbour...

A single-step purification method for the precise determination of antimony isotopic composition

Abstract Antimony isotopes have been recently used as geochemical tracers for archeological or environmental purposes. The purification of antimony in samples with a low Sb concentration and a complex matrix is a critical step to measure the 123Sb/121Sb ratio by...