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Journal article
Looking beneath Dalí's paint: non-destructive canvas analysis
A new analytical method was developed to non-destructively determine pH and degree of polymerisation (DP) of cellulose in fibres in 19th–20th century painting canvases, and to identify the fibre type: cotton, linen, hemp, ramie or jute. The method is based on NIR spectroscopy and multivariate data analysis, while for calibration...Oriola, Marta ; Možir, Alenka ; Garside, Paul ; Campo, Gema ; Nualart-Torroja, Anna …
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Journal article
Development and mining of a database of historic European paper properties
A database of historic paper properties was developed using 729 samples of European origin (1350–1990), analysed for acidity, degree or polymerisation (DP), molecular weight of cellulose, grammage, tensile strength, as well as contents of ash, aluminium, carbonyl groups, rosin, protein, lignin and fibre furnish. Using Spearman’s rank correlation coefficient and...Strlič, Matija ; Liu, Yun ; Lichtblau, Dirk Andreas ; De Bruin, Gerrit ; Knight, Barry …