How to Erase Writing According to Recipes from the Arab World: Replication and Analytical Report - dataset: analyses of erased samples

Multi analytical dataset of erased mockup samples, supporting the publication: "How to Erase Writing According to Recipes from the Arab World: Replication and Analytical Report".<br>
The results are published in:  Colini C., Marotta G., Sathiyamani S., Yañez Langner V., Muller A., Grigoriadou K., Yu C., How to Erase Writing According to Recipes from the Arab World: Replication and Analytical Report, in Cammarosano, M. (ed.) Erasing and Rewriting in Manuscript Cultures: Practices of Text Obliteration and Manuscript Reuse in a Global Perspective, Studies in Manuscript cultures, 48, De Gruyter, 2025 

The samples were first examined and imaged using a three-colour Dino-Lite USB digital microscope (model AD413T-I2V), in combination with an external white-light source, to document any visible change in the sample after applying the erasing methods.<br>
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μ-XRF measurements: Spatial maps of a selection of samples were acquired using a Bruker M6 Jetstream scanner with a<br>
Rh X-ray tube, a 60 mm2 Xflash SDD detector, and an adjustable measuring spot ranging from 100 to 1000 μm. The measurements were conducted at 35 kV voltage and 800 μA current, with a spot size of 35 μm, an acquisition time of 100 ms per spot, and a step size of 100 μm. The data was subjected to further analysis on the instrument’s software.<br>
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Fourier transform infrared spectroscopy (FTIR) spectra were acquired using a Nicolet iS5 FTIR spectrometer in combination with the iD7 ATR (attenuated total reflectance) module, equipped with a diamond crystal. The spectra were acquired in the range 4000–400 cm-1 with a total of sixty-four scans per measurement and a spectral resolution of 4 cm-1. The measurements were performed on both the<br>
erased and non-erased areas of a selection of samples, in order to determine the<br>
presence of residues, including organic components not detectable using μ-XRF spectroscopy. In specific cases, the reference spectrum of the ingredients was taken to facilitate comparison.<br>
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The data labelling follows the CSMC Artefact Profiling Lab Standardised System for the Labelling of Analytical Data  (https://doi.org/10.25592/uhhfdm.14853)