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

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

Open Access

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

Author(s) -

Ting Cheng,

Oliver Nebel,

Paolo A. Sossi,

Fukun Chen

Publication year - 2014

Publication title -

methodsx

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.356

H-Index - 23

ISSN - 2215-0161

DOI - 10.1016/j.mex.2014.08.004

Subject(s) - extraction (chemistry) , matrix (chemical analysis) , fraction (chemistry) , chemistry , chromatography , mass fraction , hafnium , mass spectrometry , isotope , chromatographic separation , analytical chemistry (journal) , high performance liquid chromatography , zirconium , inorganic chemistry , organic chemistry , physics , quantum mechanics

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.

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