1. Laboratory of Analysis and Non‐Destructive Investigation of Heritage Objects The National Museum in Krakow Krakow 31109 Poland
2. Faculty of Chemistry Jagiellonian University in Krakow Krakow 30‐060 Poland
3. Department of Pharmacology Institute of Pharmacology Polish Academy of Sciences 12 Smętna 12 St Kraków 30‐060 Poland