PHYSICO-CHEMICAL ANALYSES TEXT

PHYSICO-CHEMICAL ANALYSES


The physico-chemical analysis at APAC is part of the complex characterization process of artefacts and works of art. It is performed by the combined or separate use of various spectroscopic, microscopic and imaging techniques. This approach allows to investigate the cultural heritage materials non-invasively without the necessity to take samples. The purpose of the physico-chemical is the identification of chemical materials, both organic and inorganic, that constitute the artefacts and works of art. Some of these materials might serve as markers pointing out at a certain historical period, a specific artist or a geographical location. Therefore, the range of research questions for physico-chemical analysis includes, but is not limited to the authentication, exposure of fakes, identification of the production patterns and artist’s/artisan’s techniques, virtual reunification of dispersed fragments, evaluation of the state of conservation, study of the history of interventions, provenance study etc. All the equipment employed for physico-chemical at APAC is portable, which allows to perform onsite measurements directly at museums, churches, galleries and excavation sites.

- Non-invasive methods of analysis:

- Fiber-Optic Reflectance Spectroscopy (FORS), Ruby STIL spectrocolourimeter

- Digital microscopy, Hirox KH 8700 digital microscope

- X-Ray Fluorescence spectroscopy (XRF), Bruker Artax 200 XRF spectrometer

- Fourier-Transform Infrared spectroscopy (FTIR), Agilent 5500 FTIR spectrometer

- Infrared Reflectography (IRR), Osiris IRR camera

- Additionally, APAC is collaborating with local hospitals for X-Ray Radiography (XRR) test