Museums, Historical Sites and Similar Institutions

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Characterization of Pyrite Inclusions in Lapis Lazuli Using X-ray Fluorescence Micro-imaging
Characterization of Pyrite Inclusions in Lapis Lazuli Using X-ray Fluorescence Micro-imaging
Lapis lazuli is a deep-blue metamorphic rock used as a semiprecious stone which contains inclusions that can impact its value. Pyrite impurities and major elements distribution are studied with the XGT-9000, HORIBA’s new X-ray microscope.
Spectroscopic Analysis Explains the Mystery of Dragonfly Eye Beads
Spectroscopic analysis can reveal the origin of cultural heritages and the historical background at the time. This application note introduces research of a dragonfly eye bead found in a tomb in China. Using Raman spectroscopy and X-ray analytical microscopy, the bead was found to be from the Eastern Mediterranean region and the result suggested China had cultural and economic exchanges with them during that era.
Micro-XRF for non destructive analysis of museum and archaeological objects
Micro-XRF for non destructive analysis of museum and archaeological objects
Pigments used in an ancient Nepalese manuscript have been analysed and assigned and an ancient glass burial ornament has been probed to identify the specific colouring additives used.
pH and Conductivity for Testing Acrylic Paint Films and Paper Supports and Formulating Aqueous Cleaning Solutions
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New aqueous cleaning system for acrylic paint films on paper supports has been developed. Isotonic aqueous cleaning solutions that match the pH and conductivity readings of acrylic paint films and paper supports obtained from agarose gel pellets have been shown to be effective in reducing or removing dirt, dust, active mold growth and associated stains, tide line stains, and discoloration.

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