publication . Other literature type . Doctoral thesis . 2009

Trasmission and Reflection (ATR)Far-Infrared Spectroscopy Applied in the Analysis of Cultural Heritage Materials

Kendix, Elsebeth Langholz;
Open Access
  • Published: 12 Oct 2009
  • Publisher: Alma Mater Studiorum - Università di Bologna
  • Country: Italy
Abstract
FIR spectroscopy is an alternative way of collecting spectra of many inorganic pigments and corrosion products found on art objects, which is not normally observed in the MIR region. Most FIR spectra are traditionally collected in transmission mode but as a real novelty it is now also possible to record FIR spectra in ATR (Attenuated Total Reflectance) mode. In FIR transmission we employ polyethylene (PE) for preparation of pellets by embedding the sample in PE. Unfortunately, the preparation requires heating of the PE in order to produces at transparent pellet. This will affect compounds with low melting points, especially those with structurally incorporated w...
Subjects
free text keywords: CHIM/12 Chimica dell'ambiente e dei beni culturali
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