Page - 132 - in The Vienna Genesis - Material analysis and conservation of a Late Antique illuminated manuscript on purple parchment

132 The silver inks of the Vienna Genesis Therefore, a comparison of a spectrum of the silver ink of folio 1 of the Vienna Genesis and the four spectra of the copper-containing reference inks ST1 (4.55 wt% Cu), ST10 (20.70 wt% Cu), ST11 (25.32 wt% Cu) and ST12 (25.32 wt% Cu) is depicted in figure Fig. 13: Comparison of the XRF spectra of four copper containing reference inks: ST1 (red), ST10 (blue), ST11 (green) and ST12 (purple) and a silver ink of Vienna Genesis on folio 1r (MP1_2, grey). Fig. 14: Comparison of the XRF spectra of two reference inks – ST1B (red), to which NaCl was added dur- ing the production process, and ST11C (green), which does not contain any NaCl, but was later prepared with a solution of NaCl (3,5 %) – and a silver ink of Vienna Genesis on folio 1r (MP1_2, grey). Open-Access-Publikation im Sinne der CC-Lizenz BY 4.0