研究目的

Investigating the therapeutic effects of a specific herbal medicine on a particular disease.

研究成果

The present study confirms that on‐site Raman analysis is an efficient non‐invasive technique for the characterisation of enamelled glass artefacts, thanks to the use of a high magnification microscope objective to avoid the contribution of the substrate. In particular, the fluorescence caused by the glass body can mask the signature of the thin enamels applied, being the case for the artefacts analysed where the thickness of the enamels is much smaller than that of the pottery glazes. Islamic artefacts such as Mamluk enamelled glass are examples of thick enamels where the enamel layer can be hundreds of microns thick. As a non‐invasive method, on‐site Raman analysis competes very well with ion beam techniques that are not mobile and much more expensive. The high spatial resolution of Raman microspectroscopy is also a great advantage when compared to portable X‐ray fluorescence that is commonly used for the non‐invasive characterisation of ancient glassy artefacts. The information related to the composition type of glass and enamels that can also be inferred from the Raman spectra contributes to the understanding of the production technology of the artefacts. Application of this method to figurines that are expected to have been produced in different workshops (Orléans, Nevers, Venice, etc.) may offer new information on these poorly studied artefacts. Furthermore, on‐site Raman analysis, capable of identifying crystalline and amorphous phases, is also able to identify the small amount of the arsenate that was formed as a result of Perrot's recipe for the preparation of the ruby glass as well as the use of arsenic‐rich cobalt ore with European origin for the blue glasses. Finally, it can be suggested that the figurines of Perrot's workshop were opacified with Ca2Sb2O7 whereas the artefacts assigned to his followers such as the beaker 999.4.1, pot MNC 11226, and Baluster vase MNC 2011.0125 utilised the bone calcination route [Ca3(PO4)2 opacifier].

研究不足

The technical and application constraints of the experiments, as well as potential areas for optimization.