Netherlands Institute for Conservation, Art and Science

NICAS Colloquium

11Apr2019 12:00 - 13:00


The next edition of the NICAS Colloquium takes place on Thursday, 11 April 2019, from 12:00 to 13:00 in Conference Room B of the Atelier Building (Hobbemastraat 22, Amsterdam).


The chair of this colloquium will be Justyna Kedziora (Rijksmuseum).


The following presentations are scheduled for this edition of the NICAS Colloquium:

Investigations into synthetic organic pigments and paints by combining art technological source research with organic analysis, Part 1: Source Research & Raman spectroscopy

Rika Pause

The introduction of synthetic organic pigments around 1900 led to new applications as imitations of traditional pigments, or for new bright hues in artists’ paint. Therefore, investigation and identification of these pigments is an important subject within the field of heritage science, to answer questions of authenticity and advance conservation of art from this era. The Dutch paint manufacturer Talens & Co (now Royal Talens) started the production of Rembrandt Olieverven in 1904 in Apeldoorn. The Talens production archive provided logbooks, paint tubes and colour charts with original paint outs, documenting the oil paint production. Archival research on the production of these oil paints was complemented by analysis of historical paint tubes. This presentation will focus on the representative investigation of the Talens oil paint “Vermilion imit.” to explain the applied methodology as a case study.

Rika Pause studied Technology, Conservation and Restoration of Paintings and Polychrome sculptures at the Academy of Fine Art and Design Stuttgart and is now investigating synthetic organic pigments within modern paints at the RCE, focusing on Talens.


Investigations into synthetic organic pigments and paints by combining art technological source research with organic analysis, Part II: Chromatographic approaches

Brynn Sundberg

Several kinds of analytical instrumentation have been applied for the determination of the synthetic organic pigments (SOPs) in a sample. While non-destructive approaches are ideal, much more comprehensive information can be gained from micro-destructive techniques. This is especially true for chromatographic techniques, which allow for nuanced separations, sensitive detection, and, potentially, structural information—characteristics that allow for a deeper understanding of an SOP sample. In this study, over sixty pigment samples from paint tubes, texts, and colour charts dating between 1920 to 1950 were analysed, obtained from the archive of the paint manufacturer Royal Talens. Chromatographic methods (UPLC-DAD, UPLC-DAD-MS, and Py-GC-MS) will be discussed and then compared through an example detailing the analysis of the Talens oil paint “Alizarin orange”.

Brynn Sundberg is a Master's student in Chemistry at Villanova University focusing on chromatography and mass spectrometry. She is currently a guest researcher at the University of Amsterdam by means of a Fulbright grant, entitled “Characterizing Synthetic Organic Pigments for the Preservation of Cultural Heritage".


Thursday, 11 April 2019


12:00 – 13:00 hrs


Conference Room B, Atelier Building
Hobbemastraat 22, Amsterdam

Published by  NICAS