TY - JOUR A1 - Brozowski, E. A1 - Colini, C. A1 - Hahn, Oliver A1 - Rabin, Ira ED - Ayo, Charles K. T1 - Scientific investigations on paper and writing materials of Mali: A pilot study N2 - The investigation of physical properties and chemical composition generates data important for answering cultural-historical questions that cannot be solved by historical and philological methods alone. Due to technological developments, technical diagnostics in art and culture are in ever-greater demand in such fields of transdisciplinary research. Natural sciences play auxiliary role in the studies of manuscripts. The success of their contribution depends strongly on the formulation of the question, the choice of the methods to obtain the requested answer, and appropriate reference databases. First, report was given on the measurements performed on local raw materials, such as, plants, minerals and animals, which constitute the reference session. Then, the first results of the scientific analysis of several fragments from the Malian manuscript collections were present. KW - Manuscripts KW - Inks KW - Colorants KW - Non-destructive testing PY - 2019 DO - https://doi.org/10.5897/JASD2017.0453 SN - 2141-2189 VL - 11 IS - 3 SP - 28 EP - 50 PB - Academic Journals CY - Nairobi, Kenya AN - OPUS4-48100 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hahn, Oliver A1 - Oltrogge, D. A1 - Bevers, H. T1 - Coloured prints of the 16th century: Non-destructive analyses on coloured engravings from Albrecht Dürer and contemporary artists N2 - Qualitative investigations of pigments and dyes using micro X-ray fluorescence spectrometry (micro-XRF) and visible spectrophotometry (VIS) are suitable non-destructive methods for the characterization of different colorants in art objects. In this study, several rare coloured engravings from the work of Albrecht Dürer—and, in addition, from the work of Cornelis Cort, Servatius Raeven and Johannes Sadeler—were investigated. The analyses result in specific palettes of colours that were used by different artists or in different workshops for the coloration of engraved images. Starting from these different palettes, it is possible to distinguish coeval colorations that were added in the 16th century from those that were carried out at a later date (e.g., the 19th century). KW - XRF-analysis KW - Non-destructive methods KW - Engravings KW - Pigments KW - Colorants KW - X-ray Fluorescence Spectrometry KW - Visible spectrophotometry PY - 2004 DO - https://doi.org/10.1111/j.1475-4754.2004.00157.x SN - 0003-813X SN - 1475-4754 SN - 0365-6004 VL - 46 IS - 2 SP - 273 EP - 282 PB - Blackwell CY - Oxford AN - OPUS4-4114 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -