CORRELATION BETWEEN SPECTRAL,SEM/EDX AND ELECTROCHEMICAL PROPERTIES OF MAYA BLUE: A CHEMOMETRIC STUDY* |
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| Authors: | A DOMÉNECH M T DOMÉNECH‐CARBÓ M L VÁZQUEZ DE AGREDOS PASCUAL |
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| Institution: | 1. Departament de Química Analítica, Universitat de València, Dr. Moliner, 50, 46100 Burjassot, València, Spain;2. Institut de Restauració del Patrimoni, Universitat Politécnica de València, Camí de Vera 14, 46022, València, Spain |
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| Abstract: | Visible spectra, composition from SEM/EDX and solid‐state electrochemical data are correlated for a set of 12 Maya Blue samples from different archaeological sites of Campeche and Yucatán (Mexico). In addition to indigo and dehydroindigo, indirubin and other possibly indigo‐type compounds can be detected in Maya Blue samples. Application of hierarchical cluster analysis techniques allows similarity relationships to be established between samples from different sites, confirming prior results which suggest that the preparation of Maya Blue pigment evolved with time during the Maya culture following a ramified scheme. |
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| Keywords: | MAYA BLUE VISIBLE SPECTRUM ELECTROCHEMISTRY SEM/EDX CHEMOMETRICS |
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