Electrochemical fingerprint of archeological lead silicate glasses using the voltammetry of microparticles approach

9 págs.; 14 figs.; 1 tab.The application of a solid-state electrochemical technique, voltammetry of microparticles (VMP), for studying archeological lead glass is described. Upon attachment to graphite electrodes immersed into aqueous acetate buffer, characteristic voltammetric profiles were obtained for submicrosamples of archeological glasses dated between the 9th and 19th centuries. Bivariate and multivariate chemometric analyses of the VMP data allowed us to characterize individual workshops/provenances which enabled a clear discrimination between soda-rich and potash-rich glasses. An analysis of the VMP data, combined by XRF, FESEM, AFM and ATR-FTIR and Micro-Raman spectroscopies, denoted the presence of Pb(IV) centers accompanying network-former and network-modifier Pb(II). © 2016 The American Ceramic SocietyFinancial support from the MINECO Projects CTQ2014-53736-C3-1-P,CTQ2014-53736-C3-2-P and MAT2015-65445-C2-2-R, which are supportedwith ERDF funds is gratefully acknowledged. Likewise financial support ofthe Comunidad de Madrid and structural funds of the EU through ProgramaGeomateriales 2 ref. S2013/MIT-2914 is acknowledged. The authors thank the Sección de Investigación Arqueológica Municipal de Valencia for kindly authorizing sampling to carry out this research. The authors also thank Dr.Jose Luis Moya Lopez and Mr. Manuel Planes Insausti (Microscopy Serviceof the Universitat Politécnica de Valencia) for their technical support.Peer Reviewe