6533b82dfe1ef96bd1291255

RESEARCH PRODUCT

Identification of Manganese(IV) Centers in Archaeological Glass Using Microsample Coatings Attached to PolymerFilm Electrodes

Laura Osete-cortinaM. T. Doménech-carbóAntonio Doménech-carbó

subject

chemistry.chemical_classificationMaterials scienceScanning electron microscopeAnalytical chemistrychemistry.chemical_elementPolymerMicroporous materialManganeseArchaeologyAnalytical ChemistrychemistryLinear ScanElectrodeX-ray crystallographyElectrochemistryDifferential pulse voltammetry

description

Identification of MnO2 nodulae in archaeological glass by linear scan and differential pulse voltammetry using abrasive-conditioned microsamples attached to polymer film (Elvacite 2044) electrodes is described. Voltammetric responses for manganese-containing samples parallels to those obtained for β- and γ-MnO2 upon immersion of modified electrodes into NaCl, KCl and acetic/acetate aqueous media. The observed electrochemical response provides information on the open microporous structure of the MnO2 forms and the conditions of their formation during the weathering process of buried glass.

https://doi.org/10.1002/1521-4109(200107)13:11<927::aid-elan927>3.0.co;2-9