Workshop on new analytic tools in sample pretreatment

Conveners: Elisabetta Boaretto, Francesco Caruso, Irka Hajdas, Karin Wyss
Date and location: Sunday 11.9.2022, 14:00-16:30 (followed by Ice Breaker), ETH Hoenggerberg.

Selection of carbon inherent to the studied sample material is an essential step in preparation of samples for radiocarbon dating. Contamination by exogenous carbon can be removed using physical and chemical methods. In this workshop we will discuss the potential to improve sample preparation and separation of carbon for accurate dating by employing various analytical tools such as FTIR, TGA, SEM, Raman, DTMS, Py-GC-MS, and others. This is also fundamental for the investigation of novel materials used for dating.

Visiting the 14C laboratory at ETHZ will allow analysis by FTIR and discussion on specific samples.

We invite short contributions (up to 5 slides) intended to initiate the discussion. Such contributions can also be part of regular papers which will be presented during the conference-week (abstract should be submitted to the corresponding session). Please contact Irka Hajdas or Elisabetta Boaretto if you are interested in giving a short presentation.

A fragment of wood sample from a museum object.
The FTIR spectrum indicates contamination of wood (blue) with Polyvinyl Acetate (PVAc) (red).