Katarzyna Sieczyńska – graduated from the Faculty of Chemistry at the Department of Chemistry Physics of the University of Lodz. She is currently employed at the Research Network Łukasiewicz - Łódź Institute of Technology, in the Product Test Laboratory Food, Colored Products and Environment as a senior specialist. He carries out tests related to the content and migration of metals in products made of plastics and rubber, leather, textiles, footwear, consumer products intended for humans, pharmaceutical packaging and in toys.