ATR-FTIR Spectroscopy – paper

Course - Iron Gall Ink - ATR FTIR - paper
ATR-FTIR (Attenuated Total Reflectance Fourier Transform Infrared) spectroscopy is a powerful technique for studying paper and iron gall ink by enabling the non-invasive analysis of both organic and inorganic compounds. For paper, ATR-FTIR is particularly useful in identifying additives and alterations from manufacturing processes or conservation treatments. However, its application to iron gall ink has generally shown limited success. In this video lesson, we demonstrate the process of acquiring and interpreting ATR-FTIR spectra from historical paper and cellulose-based artifacts, providing practical examples and insights. Course - Iron Gall Ink - ATR FTIR - paper Course - Iron Gall Ink - ATR FTIR - paper Course - Iron Gall Ink - ATR FTIR - paper Course - Iron Gall Ink - ATR FTIR - paper Course - Iron Gall Ink - ATR FTIR - paper Course - Iron Gall Ink - ATR FTIR - paper

ATR-FTIR (Attenuated Total Reflection Fourier Transform Infrared Spectroscopy) is a powerful analytical technique widely used in the examination of artworks and cultural heritage materials. In art investigation, it enables the identification of organic and inorganic compounds based on their characteristic infrared absorption bands, providing molecular-level information with minimal or no sampling. This makes ATR-FTIR Spectroscopy for paper particularly valuable in conservation science, where preserving the integrity of the object is essential.

For historical documents on paper, ATR-FTIR plays a crucial role in characterizing both the support and the materials applied to it. Cellulose, sizing agents, fillers, inks, adhesives, and degradation products each display distinctive spectral features that can be recognized and interpreted. ATR-FTIR Spectroscopy for paper is especially effective for studying paper composition, assessing ageing and oxidation processes, and identifying restoration materials introduced during past conservation treatments.

By allowing rapid, localized analysis directly on the document surface, ATR-FTIR supports informed conservation decisions and enhances our understanding of historical manufacturing techniques. The reliability and versatility of ATR-FTIR Spectroscopy for paper make it a cornerstone method in the scientific examination of paper-based heritage objects.

To reinforce the concepts discussed here, we also provide a video lesson that visually walks through the key points of this topic. Watching the video alongside the text can help you better understand and apply these ideas in practice.



Training 2026

Scientific Art Examination – Resources:
Getty Conservation Institute (GCI) – USA
The British Museum – Scientific Research Department – UK
Scientific Research Department – The Metropolitan Museum of Art, New York, USA
C2RMF (Centre de Recherche et de Restauration des Musées de France) – France
Rijksmuseum – Science Department – Netherlands