Refined separation of combined Fe–Hf from rock matrices for isotope analyses using AG-MP-1M and Ln-Spec chromatographic extraction resins

Ting Cheng; Oliver Nebel; Paolo A. Sossi; Fukun Chen

doi:10.1016/j.mex.2014.08.004

MethodsX (Jan 2014)

Refined separation of combined Fe–Hf from rock matrices for isotope analyses using AG-MP-1M and Ln-Spec chromatographic extraction resins

Ting Cheng,
Oliver Nebel,
Paolo A. Sossi,
Fukun Chen

Affiliations

Ting Cheng: Chinese Academy of Sciences, Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
Oliver Nebel: Research School of Earth Sciences, The Australian National University, 0200 Acton, ACT, Australia
Paolo A. Sossi: Research School of Earth Sciences, The Australian National University, 0200 Acton, ACT, Australia
Fukun Chen: Chinese Academy of Sciences, Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China

DOI: https://doi.org/10.1016/j.mex.2014.08.004
Journal volume & issue: Vol. 1, no. C
pp. 144 – 150

Abstract

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A combined procedure for separating Fe and Hf from a single rock digestion is presented. In a two-stage chromatographic extraction process, a purified Fe fraction is first quantitatively separated from the rock matrix using AG-MP-1M resin in HCl. Hafnium is subsequently isolated using a modified version of a commonly applied method using Eichrom LN-Spec resin. Our combined method includes: • Purification of Fe from the rock matrix using HCl, ready for mass spectrometric analysis. • Direct loading of the matrix onto the resin that is used for Hf purification. • Collection of a Fe-free Hf fraction.

Published in MethodsX

ISSN: 2215-0161 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science
Website: http://www.journals.elsevier.com/methodsx/

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