Fritz Scholz — Un homenaje con motivo de su anunciada jubilación

[ES] El Profesor Doctor Fritz Scholz (Greifswald University) ha anunciado su jubilación para el próximo año. Este artículo es un homenaje a un químico destacado que ha contribuido de manera notable al desarrollo de la química analítica y al estudio analítico del patrimonio cultural y que ha estado muy estrechamente vinculado al Instututo Universitario de Restauración del Patrimonio.[EN] Professor Doctor Fritz Scholz (Greifswald University) has announced his retirement for the next year. This article is a tribute to an outstanding chemist that has notably contributed to the development of the analytical chemistry and the analytical studies of cultural heritage and has been narrowly linked to the Institut Universitari de Restauració del Patrimoni.Domenech Carbo, A.; Domenech Carbo, MT. (2020). Fritz Scholz — Un homenaje con motivo de su anunciada jubilación. Arché. (13 - 14 - 15):227-230. http://hdl.handle.net/10251/15699422723013 - 14 - 1

Aplicación de la técnica de microscopía electrónica por emisión de campo con haz de iones focalizado en el estudio del patrimonio cultural: cerámica arqueológica y fotografía histórica

[ES] Este trabajo nace a partir del interés por profundizar en el conocimiento y exploración de las capacidades de los distintos métodos de análisis de patrimonio cultural basados en técnicas nano invasivas (ng). La instrumentación de microscopía basada en la tecnología de haz de iones enfocado (FIB) ha ampliado notablemente el alcance de las aplicaciones industriales en el análisis de superficie de materiales en las últimas décadas. Sin embargo, esta técnica apenas se ha aplicado en el examen y análisis del patrimonio cultural. En este estudio se exponen los resultados obtenidos en la adaptación del sistema FIB con un microscopio electrónico de barrido de emisión de campo convencional microanálisis de rayos X (FESEM-EDX) como una metodología de análisis de superficie aplicada al estudio de cerámica vidriada y a los procesos fotográficos históricos.[EN] This work is born from the interest to deepen knowledge and explore capabilities of the different methods of analysis on cultural heritage based on nanoinvasive techniques (ng). Microscopy instrumentation based on focused ion beam (FIB) technology has significantly expanded the scope of industrial applications for material surface analysis in recent decades. However, this technique has scarcely been applied in the examination and analysis of cultural heritage. This study sets out the results obtained in adapting the FIB system with a conventional X-ray micro-analysis (FESEMEDX) field emission scanning electron microscope as a surface analysis methodology applied to the glazed ceramic study and historical photographic processes.La presente investigación está financiada con los proyectos I+D: CTQ2017-85317-C2-1-P cofinanciado por el Ministerio de Ciencia Innovación y Universidades, el Fondo Europeo de Desarrollo Regional (ERDF) y la Agencia Estatal de Investigación (AEI). Los autores agradecen la colaboración de Manuel Planes, José Luis Moya y Alicia Nuez, técnicos del Servicio de Microscopía Electrónica de la Universitat Politècnica de València. Los autores desean expresar su agradecimiento a Josep Pérez, Director del Museo de Cerámica de Manises que ha facilitado el fragmento de cerámica objeto de estudio.Domenech Carbo, A.; Domenech Carbo, MT.; Mai Cerovaz, C. (2020). Aplicación de la técnica de microscopía electrónica por emisión de campo con haz de iones focalizado en el estudio del patrimonio cultural: cerámica arqueológica y fotografía histórica. Arché. (13 - 14 - 15):149-156. http://hdl.handle.net/10251/15659514915613 - 14 - 1

Dating archaeological copper using electrochemical impedance spectroscopy. Comparison with voltammetry of microparticles dating

[EN] A methodology for dating copper/bronze archaeological objects aged under atmospheric environments using electrochemical impedance spectroscopy (EIS) is described. The method is based on the measurement of resistance associated to the growth of corrosion layers in EIS recorded upon immersion of the pieces in mineral water and applying a bias potential for the reduction of dissolved oxygen. Theoretical expressions for the time variation of such resistance following a potential rate law are presented. Equivalent expressions are derived and applied for estimating the variation of the tenorite/cuprite ratio from their specific voltammetric signals using voltammetry of microparticles data. Calibration curves were constructed from a set of well-documented coins.Financial support from the MEC Projects CTQ2011-28079-CO3-01 and 02 and CTQ2014-53736-C3-2-P which are supported with ERDF funds is gratefully acknowledged.Domenech Carbo, A.; Capelo, S.; Piquero-Cilla, J.; Domenech Carbo, MT.; Barrio, J.; Fuentes, A.; Al Sekhaneh, W. (2016). Dating archaeological copper using electrochemical impedance spectroscopy. Comparison with voltammetry of microparticles dating. Materials and Corrosion. 67(2):120-129. https://doi.org/10.1002/maco.201408048S120129672Friedman, I., & Smith, R. L. (1960). Part I, The Development of the Method. American Antiquity, 25(4), 476-493. doi:10.2307/276634Reich, S., Leitus, G., & Shalev, S. (2003). Measurement of corrosion content of archaeological lead artifacts by their Meissner response in the superconducting state; a new dating method. New Journal of Physics, 5, 99-99. doi:10.1088/1367-2630/5/1/399Scholz, F., Schröder, U., Meyer, S., Brainina, K. 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Analytical Chemistry, 83(14), 5639-5644. doi:10.1021/ac200731qDoménech-Carbó, A., Doménech-Carbó, M. T., Capelo, S., Pasíes, T., & Martínez-Lázaro, I. (2014). Dating Archaeological Copper/Bronze Artifacts by Using the Voltammetry of Microparticles. Angewandte Chemie International Edition, 53(35), 9262-9266. doi:10.1002/anie.201404522Benarie, M., & Lipfert, F. L. (1986). A general corrosion function in terms of atmospheric pollutant concentrations and rain pH. Atmospheric Environment (1967), 20(10), 1947-1958. doi:10.1016/0004-6981(86)90336-7Strandberg, H. (1998). Reactions of copper patina compounds—II. influence of sodium chloride in the presence of some air pollutants. Atmospheric Environment, 32(20), 3521-3526. doi:10.1016/s1352-2310(98)00058-2Cano, E., Lafuente, D., & Bastidas, D. M. (2009). Use of EIS for the evaluation of the protective properties of coatings for metallic cultural heritage: a review. 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Electrochemical analysis of gildings in Valencia altarpieces: a cross-age study since fifteenth until twentieth century, Journal of Solid State Electrochemistry

[EN] The application of the voltammetry of microparticles methodology to the study of gildings in paintings and architectural ornaments is described. Nanosamples from pieces from different churches of the Comunitat Valenciana (Spain) covering since the fifteenth century until nowadays were studied upon attachment to graphite electrodes in contact with aqueous HCl and H2SO4 electrolytes. Electrochemical measurements, combined with field emission scanning electron microscopy X-ray microanalysis (FESEM-EDX) and atomic force microscopy (AFM) data, denoted that a common manufacturing technique was used with minimal variations along time. The relationship between specific voltammetric features associated to bulk gold and active surface sites, however, changed monotonically with time, thus suggesting the possibility of age monitoring.Financial support from the MINECO Projects CTQ2014-53736-C3-1-P, CTQ2014-53736-C3-2-P and MAT2015-65445-C2-2-R, which are supported with ERDF funds is gratefully acknowledged. Likewise financial support of the Comunidad de Madrid and structural funds of the EU through Programa Geomateriales 2 ref. S2013/MIT-2914 is acknowledged. The authors thank the Seccion de Investigacion Arqueologica 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 Service of the Universitat Politecnica de Valencia) for their technical support.Ferragud Adam, JV.; Piquero-Cilla, J.; Domenech Carbo, MT.; Guerola Blay, V.; Company Climent, J.; Domenech Carbo, A. (2016). 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Multiple-scan voltammetry and OCP: Archaeometric tools for dating archaeological bronzes

[EN] The application of a multiple-scan strategy to nanosamples taken from 18 cross-sections of Bronze Age arms and armour, as well as two Roman coins using two solid-state electrochemical techniques, the voltammetry of immobilized microparticles (VIMP) and open circuit potential measurements (OCP) is described. The voltammetric responses in contact with aqueous acetate buffer can be attributed to the reduction of cuprite with variable degree of compaction and crystallinity revealing significant differences in the gradient of such properties with depth. Such differences are also revealed by "dry" OCP measurements connecting points in the cross section near and separated from the corrosion layer. The voltammetric study of the metallographic samples of the bronze objects shows correlation with the age of the objects, respectively the period of their deposition. We discuss also (potential) influence of different factors on the VIMP and OCP measurements, such as deposition context (soil, water), chemical composition of the copper alloys, and microstructural features (ascast, annealed, work-hardened), and how to overcome these issues.Project CTQ2017-85317-C2-1-P, supported with Ministerio de Economia, Industria y Competitividad (MINECO), Fondo Europeo de Desarrollo Regional (ERDF) and Agencia Estatal de Investigacion (AEI), is gratefully acknowledged.Doménech-Carbó, A.; Mödlinger, M.; Domenech Carbo, MT. (2021). Multiple-scan voltammetry and OCP: Archaeometric tools for dating archaeological bronzes. Journal of Electroanalytical Chemistry. 893:1-9. https://doi.org/10.1016/j.jelechem.2021.115336S1989

Cation and anion electrochemically assisted solid-state transformations of malachite green

[EN] The possibility of the electrochemical promotion of different solid-to-solid transformations including the performance of successive cation and anion insertion processes has been tested using malachite green, a triphenylmethane dye, in contact with aqueous NaCl electrolyte. Electrochemical data using the voltammetry of microparticles methodology reveal significant differences with the solution phase electrochemistry of the dye. Voltammetric data, combined with atomic force microscopy, focusing ion beam-field emission scanning electron microscopy, and high-resolution field emission scanning electron microscopy permit characterization of the oxidative dissolution, oxidation with anion insertion, reduction with cation insertion and reduction with anion issue processes, whose thermochemical aspects, involving separate ion and electron transport contributions, are discussed.Financial support from the Project CTQ2017-85317-C2-1-P (Ministerio de Economia, Industria y Competitividad (MINECO), Fondo Europeo de Desarrollo Regional (ERDF) and Agencia Estatal de Investigacion (AEI)), is gratefully acknowledged.Doménech-Carbó, A.; Dias, D.; Domenech Carbo, MT. (2020). Cation and anion electrochemically assisted solid-state transformations of malachite green. Physical Chemistry Chemical Physics. 22(3):1502-1510. https://doi.org/10.1039/c9cp05835dS1502151022

Characterization of additives of PVAc and acrylic waterborne dispersions and paints by analytical Py-GC-MS and Py-Silylation-GC-MS

[EN] Commercial formulations of poly(vinyl acetate) (PVAc) and acrylic dispersions and paints commonly used by artists include a number of additives such as surfactants, coalescing agents, defoamers and thickeners, which are designed for improving shelf-life, as well as chemical and physical properties of the resulting product. Recent studies have shown that additives present in paints play an important role in the alteration processes undergone by the painting during ageing and further in cleaning tasks planed in conservation interventions. However, the identification of additives is a difficult task due to the elusive character of these substances present at low concentration in the paint. In this context, a four-step approach is proposed that includes analysis of paint samples together with analysis of their water extracted products by pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) and pyrolysis-silylation-gas chromatography-mass spectrometry (Py-silylation-GC-MS). This analytical strategy enables a better characterization of common additives present in commercial PVAc and acrylic paints and dispersions. In particular, the analysis of water soluble extracts, which are mainly composed by paint additives, avoids the interference of the major polymer pyrolizates. Experimental conditions concerning sample preparation and instrumental working conditions of both Py-GC techniques are optimized. Both acrylic and PVAc paints presented poly(ethylene oxide) (POE) type fragments dominating the background of their pyrograms, especially when derivatized by means of hexamethyldisilazane (HMDS). For the first time, additives such as alkyl sulfate and alkyl ether sulfate with C-10 and C-12 alkyl chains, poly(ethoxylate) fatty alcohol and octylphenyl poly(ethoxylate) surfactants were identified, as well as polyvinyl alcohol (PVOH) protective colloids, hydrophobically modified ethoxylated urethane (HEUR) thickeners an defoamers. Their major fragments and corresponding mass spectra are discussed. (C) 2015 Elsevier B.V. All rights reserved.Financial support from the MINECO Projects CTQ2011-28079-CO3-01 and CTQ2014-53736-C3-1-P, which are supported with ERDF funds, is gratefully acknowledged.Silva, MF.; Domenech Carbo, MT.; Osete Cortina, L. (2015). Characterization of additives of PVAc and acrylic waterborne dispersions and paints by analytical Py-GC-MS and Py-Silylation-GC-MS. Journal of Analytical and Applied Pyrolysis. 113:606-620. https://doi.org/10.1016/j.jaap.2015.04.011S60662011

Maya chemistry of organic inorganic hybrid materials: isomerization, cyclicization and redox tuning of organic dyes attached to porous silicates

[EN] Association of indigo and lapachol dyes to aluminosilicate clays yields polyfunctional organic – inorganic hybrid materials forming Maya Blue-like systems. Upon partial removing of clay's zeolitic water by moderate thermal treatment, abundant isomerization, cyclicization and oxidation reactions occur defining a‘ Maya chemistry whose complexity could explain the versatile use of such materials in the pre-Columbian cultures and permits the preparation of polyfunctional materials potentially usable for therapeutic and catalytic purposes.Financial support is gratefully acknowledged from the MEC Projects CTQ2011-28079-CO3-01 and 02 which are also supported with ERDF funds.Domenech Carbo, A.; Valle-Algarra, FM.; Domenech Carbo, MT.; Osete Cortina, L.; Domine, ME. (2013). Maya chemistry of organic inorganic hybrid materials: isomerization, cyclicization and redox tuning of organic dyes attached to porous silicates. RSC Advances. 3:20099-20105. https://doi.org/10.1039/c3ra42890gS20099201053Gómez-Romero, P., & Sanchez, C. (2005). Hybrid materials. Functional properties. From Maya Blue to 21st century materials. New J. Chem., 29(1), 57-58. doi:10.1039/b416075bCalzaferri, G., Huber, S., Maas, H., & Minkowski, C. (2003). Host–Guest Antenna Materials. Angewandte Chemie International Edition, 42(32), 3732-3758. doi:10.1002/anie.200300570Doménech, A., Doménech-Carbó, M. T., Sánchez del Río, M., Vázquez de Agredos Pascual, M. L., & Lima, E. (2009). Maya Blue as a nanostructured polyfunctional hybrid organic–inorganic material: the need to change paradigms. New Journal of Chemistry, 33(12), 2371. doi:10.1039/b901942aHubbard, B., Kuang, W., Moser, A., Facey, G. A., & Detellier, C. (2003). Structural study of Maya Blue: textural, thermal and solidstate multinuclear magnetic resonance characterization of the palygorskite-indigo and sepiolite-indigo adducts. Clays and Clay Minerals, 51(3), 318-326. doi:10.1346/ccmn.2003.0510308Fois, E., Gamba, A., & Tilocca, A. (2003). On the unusual stability of Maya blue paint: molecular dynamics simulations. Microporous and Mesoporous Materials, 57(3), 263-272. doi:10.1016/s1387-1811(02)00596-6Sánchez del Río, M., Martinetto, P., Somogyi, A., Reyes-Valerio, C., Dooryhée, E., Peltier, N., … Dran, J.-C. (2004). Microanalysis study of archaeological mural samples containing Maya blue pigment. Spectrochimica Acta Part B: Atomic Spectroscopy, 59(10-11), 1619-1625. doi:10.1016/j.sab.2004.07.027Giustetto, R., Llabrés i Xamena, F. X., Ricchiardi, G., Bordiga, S., Damin, A., Gobetto, R., & Chierotti, M. R. (2005). Maya Blue:  A Computational and Spectroscopic Study. The Journal of Physical Chemistry B, 109(41), 19360-19368. doi:10.1021/jp048587hDoménech, A., Doménech-Carbó, M. T., & Vázquez de Agredos Pascual, M. L. (2006). Dehydroindigo:  A New Piece into the Maya Blue Puzzle from the Voltammetry of Microparticles Approach. The Journal of Physical Chemistry B, 110(12), 6027-6039. doi:10.1021/jp057301lDoménech, A., Doménech-Carbó, M. T., & Vázquez de Agredos Pascual, M. L. (2007). Indigo/Dehydroindigo/Palygorskite Complex in Maya Blue:  An Electrochemical Approach. The Journal of Physical Chemistry C, 111(12), 4585-4595. doi:10.1021/jp067369gDoménech, A., Doménech-Carbó, M. T., & de Agredos Pascual, M. L. V. (2007). Chemometric Study of Maya Blue from the Voltammetry of Microparticles Approach. Analytical Chemistry, 79(7), 2812-2821. doi:10.1021/ac0623686DOMÉNECH, A., DOMÉNECH-CARBÓ, M. T., & VÁZQUEZ DE AGREDOS PASCUAL, M. L. (2009). CORRELATION BETWEEN SPECTRAL, SEM/EDX AND ELECTROCHEMICAL PROPERTIES OF MAYA BLUE: A CHEMOMETRIC STUDY*. Archaeometry, 51(6), 1015-1034. doi:10.1111/j.1475-4754.2009.00453.xDoménech, A., Doménech-Carbó, M. T., & Vázquez de Agredos-Pascual, M. L. (2011). From Maya Blue to «Maya Yellow»: A Connection between Ancient Nanostructured Materials from the Voltammetry of Microparticles. Angewandte Chemie International Edition, 50(25), 5741-5744. doi:10.1002/anie.201100921Doménech, A., Doménech-Carbó, M. T., Vidal-Lorenzo, C., & de Agredos-Pascual, M. L. V. (2011). Insights into the Maya Blue Technology: Greenish Pellets from the Ancient City of La Blanca. Angewandte Chemie International Edition, 51(3), 700-703. doi:10.1002/anie.201106562Doménech, A., Doménech-Carbó, M. T., Sánchez del Río, M., Goberna, S., & Lima, E. (2009). Evidence of Topological Indigo/Dehydroindigo Isomers in Maya Blue-Like Complexes Prepared from Palygorskite and Sepiolite. The Journal of Physical Chemistry C, 113(28), 12118-12131. doi:10.1021/jp900711kDoménech, A., Doménech-Carbó, M. T., del Río, M. S., & de Agredos Pascual, M. L. V. (2008). Comparative study of different indigo-clay Maya Blue-like systems using the voltammetry of microparticles approach. Journal of Solid State Electrochemistry, 13(6), 869-878. doi:10.1007/s10008-008-0616-1Doménech-Carbó, A., Doménech-Carbó, M. T., Valle-Algarra, F. M., Domine, M. E., & Osete-Cortina, L. (2013). On the dehydroindigo contribution to Maya Blue. Journal of Materials Science, 48(20), 7171-7183. doi:10.1007/s10853-013-7534-zDoménech-Carbó, A., Valle-Algarra, F. M., Doménech-Carbó, M. T., Domine, M. E., Osete-Cortina, L., & Gimeno-Adelantado, J. V. (2013). Redox Tuning and Species Distribution in Maya Blue-Type Materials: A Reassessment. ACS Applied Materials & Interfaces, 5(16), 8134-8145. doi:10.1021/am402193uRondão, R., Seixas de Melo, J. S., Bonifácio, V. D. B., & Melo, M. J. (2010). Dehydroindigo, the Forgotten Indigo and Its Contribution to the Color of Maya Blue. The Journal of Physical Chemistry A, 114(4), 1699-1708. doi:10.1021/jp907718kTilocca, A., & Fois, E. (2009). The Color and Stability of Maya Blue: TDDFT Calculations. The Journal of Physical Chemistry C, 113(20), 8683-8687. doi:10.1021/jp810945aGiustetto, R., Seenivasan, K., Bonino, F., Ricchiardi, G., Bordiga, S., Chierotti, M. R., & Gobetto, R. (2011). Host/Guest Interactions in a Sepiolite-Based Maya Blue Pigment: A Spectroscopic Study. The Journal of Physical Chemistry C, 115(34), 16764-16776. doi:10.1021/jp203270cGiustetto, R., & Wahyudi, O. (2011). Sorption of red dyes on palygorskite: Synthesis and stability of red/purple Mayan nanocomposites. Microporous and Mesoporous Materials, 142(1), 221-235. doi:10.1016/j.micromeso.2010.12.004Giustetto, R., Seenivasan, K., Pellerej, D., Ricchiardi, G., & Bordiga, S. (2012). Spectroscopic characterization and photo/thermal resistance of a hybrid palygorskite/methyl red Mayan pigment. Microporous and Mesoporous Materials, 155, 167-176. doi:10.1016/j.micromeso.2012.01.024Sánchez del Río, M., Boccaleri, E., Milanesio, M., Croce, G., van Beek, W., Tsiantos, C., … García-Romero, E. (2009). A combined synchrotron powder diffraction and vibrational study of the thermal treatment of palygorskite–indigo to produce Maya blue. Journal of Materials Science, 44(20), 5524-5536. doi:10.1007/s10853-009-3772-5Mondelli, C., Río, M. S. del, González, M. A., Magazzú, A., Cavallari, C., Suárez, M., … Romano, P. (2012). Role of water on formation and structural features of Maya blue. Journal of Physics: Conference Series, 340, 012109. doi:10.1088/1742-6596/340/1/012109Dejoie, C., Martinetto, P., Dooryhée, E., Strobel, P., Blanc, S., Bordat, P., … Anne, M. (2010). Indigo@Silicalite: a New Organic−Inorganic Hybrid Pigment. ACS Applied Materials & Interfaces, 2(8), 2308-2316. doi:10.1021/am100349bDejoie, C., Martinetto, P., Dooryhée, E., Brown, R., Blanc, S., Bordat, P., … Anne, M. (2011). Diffusion Of Indigo Molecules Inside The Palygorskite Clay Channels. MRS Proceedings, 1319. doi:10.1557/opl.2011.924Ovarlez, S., Giulieri, F., Chaze, A.-M., Delamare, F., Raya, J., & Hirschinger, J. 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Journal of Materials Science, 47(7), 3415-3428. doi:10.1007/s10853-011-6189-xLima, E., Guzmán, A., Vera, M., Rivera, J. L., & Fraissard, J. (2012). Aged Natural and Synthetic Maya Blue-Like Pigments: What Difference Does It Make? The Journal of Physical Chemistry C, 116(7), 4556-4563. doi:10.1021/jp207602mKumagai, Y., Tsurutani, Y., Shinyashiki, M., Homma-Takeda, S., Nakai, Y., Yoshikawa, T., & Shimojo, N. (1997). Bioactivation of lapachol responsible for DNA scission by NADPH-cytochrome P450 reductase. Environmental Toxicology and Pharmacology, 3(4), 245-250. doi:10.1016/s1382-6689(97)00019-7Nasiri, H. R., Bolte, M., & Schwalbe, H. (2008). Electrochemical and crystal structural analysis ofα- and dehydro-α-lapachones. Natural Product Research, 22(14), 1225-1230. doi:10.1080/14786410701654925Garkavtsev, I., Chauhan, V. P., Wong, H. K., Mukhopadhyay, A., Glicksman, M. A., Peterson, R. T., & Jain, R. K. (2011). Dehydro- -lapachone, a plant product with antivascular activity. 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Estudio arqueométrico de maravedís de Felipe IV (1660-1664)

"La presente investigación está fnanciada con el proyecto I+D: “Aplicación de las técnicas nanoelectroquímicas y biotecnologías en el estudio y conservación del CTQ2014-53736-C3 cofnanciado con fondos FEDER adscrito al Programa estatal de fomento de la investigación científca y técnica de excelencia, subprograma estatal de generación del conocimiento, MINECO (2015-2017). Los autores agradecen la colaboración de Dr. José Luis Moya y Manuel Planes, técnicos responsables del Servicio de Microscopía Electrónica de la Universitat Politècnica de València y a Manuel Gozalbes, conservador del Museu de Prehistòria de Valènciapatrimonio en metal” Referencia:"Álvarez-Romero, C.; Domenech Carbo, A.; Domenech Carbo, MT.; Pasies-Oviedo, T.; Buendía Ortuño, MDM. (2017). Estudio Arqueométrico de Maravedís de Felipe IV (1660-1664). SAGVNTVM (Online). 49:235-239. https://doi.org/10.7203/SAGVNTVM.49.109122352394

Electrochemical Approximation to Bronze Age Chronology via Multiple Scan Voltammetry

[EN] Insert A multiple-scan voltammetry strategy is described and applied to a set of 107 Bronze Age and later copper/bronze objects, mainly from sites in Central Europe. This methodology allows the study of the compositional and textural properties (compactness, crystallinity, degree of hydration) of the patina to be studied from the accumulated peak current values for the characteristic signals corresponding to the reduction of cuprite and tenorite to metallic copper. A new model for the relationship between peak current and the depth reached in successive scans is presented and used to discriminate samples of different provenance and manufacturing technique, as well as their ascription to different Bronze Age periods.Project P34960-G supported by the Austrian Science Fund (FWF), project PID2020-113022GB I00 supported by MCIN/AEI/ 10.13039/501100011033, Fondo Europeo de Desarrollo Regional (ERDF) and Agencia Estatal de Investigación (AEI), and Project AICO/2021/095 which is supported with Generalitat Valenciana and Fondo Europeo de Desarrollo Regional (ERDF), funds are gratefully acknowledged.Domenech Carbo, MT.; Doménech-Carbó, A.; Modlinger, M.; Osete Cortina, L. (2023). Electrochemical Approximation to Bronze Age Chronology via Multiple Scan Voltammetry. ChemElectroChem. 10(23). https://doi.org/10.1002/celc.202300405102