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

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    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. MethodCombined separation of Fe and Hf from a single rock digestion.

    Original languageEnglish
    Pages (from-to)e144-e150
    JournalMethodsX
    Volume1
    DOIs
    Publication statusPublished - 2014

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