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Issue 7, 2013
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XAS study of Mn, Fe and Cu as indicators of historical glass decay

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Abstract

We present here a study of historic glass decay by means of X-ray absorption spectroscopy (XAS). Transition metal cations incorporated in the glass as chromophores exhibit modifications of their oxidising state and chemical environment as the glass suffers a decay process. These modifications can be monitored by measuring X-ray absorption near edge structure, XANES, and extended X-ray absorption fine structure, EXAFS, spectra around a selected atomic species. We apply the technique here to glasses from different periods ranging from 1st century BC to 18th century, demonstrating that XAS provides an advanced tool for qualitative analysis of glass decay. In particular we have found that it is possible to establish a relationship between the oxidation state of Fe and Cu cations and the decay suffered by the glass. In contrast, our results indicate that the Mn oxidizing state is not directly involved in the glass decay of the studied samples.

Graphical abstract: XAS study of Mn, Fe and Cu as indicators of historical glass decay

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Publication details

The article was received on 19 Dec 2012, accepted on 03 May 2013 and first published on 03 May 2013


Article type: Paper
DOI: 10.1039/C3JA30374H
Citation: J. Anal. At. Spectrom., 2013,28, 1118-1124
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    XAS study of Mn, Fe and Cu as indicators of historical glass decay

    M. Abuín, A. Serrano, J. Chaboy, M. A. García and N. Carmona, J. Anal. At. Spectrom., 2013, 28, 1118
    DOI: 10.1039/C3JA30374H

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