TY - JOUR A1 - Steger, Simon A1 - Stege, H. A1 - Bretz, S. A1 - Hahn, Oliver T1 - A complementary spectroscopic approach for the non-invasive in-situ identification of synthetic organic pigments in modern reverse paintings on glass (1913–1946) T2 - Journal of Cultural Heritage N2 - This work addresses the identification of synthetic organic pigments (SOP) in eight modern reverse paintings on glass (1913–1946) by means of an in-situ multi-analytical approach. We combined the complementary properties of mobile Raman spectroscopy and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) to overcome the main disadvantages of each method: extensive band overlapping in DRIFT spectra and fluorescence problems in Raman spectra. A collection of DRIFTS reference spectra enables a precise pigment identification by DRIFTS and establishes this method as a serious non-destructive alternative for the identification of SOP. The group of β-naphthol pigments yielded valuable results for both methods, whereas synthetic alizarin (PR83) was preferentially detected by DRIFTS. Finally, uncommon triaryl carbonium pigments and two azo group-based yellows were identified in the paintings by means of Raman spectroscopy. PB - Elsevier Masson SAS. KW - Synthetic organic pigments KW - DRIFTS KW - Raman spectroscopy KW - Reverse glass painting PY - 2019 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/48008 AN - OPUS4-48008 SN - 1296-2074 SN - 1778-3674 VL - 38 SP - 20 EP - 28 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany