Naslov
Migration of Pseudoestrogen Bisphenol A from Various Types of Paper with Thermochromic Prints to Artificial Sweat Solutions

Autori
Vinković, Kristinka ; Vukoje, Marina ; Rožić, Mirela ; Galić, Nives

Izvornik
Journal of liquid chromatography & related technologies (1082-6076) 43 (2020); 195-202

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
artificial sweat ; bisphenol A ; extraction ; paper ; thermochromic ink

Sažetak
Thermochromic inks, materials that change color at certain temperature, are increasingly used on papers and other materials in the areas of design, commercials and security printing. Pseudo-estrogen bisphenol A (BPA) may be one of their main compounds present in mass fractions of up to several percent. In this work, the mass fractions of BPA in thermochromic prints on seven types of paper were determined. Migration of BPA from the surface of thermochromic print to artificial sweat solutions was investigated as well. Total amount of BPA in papers with thermochromic prints was determined by an HPLC-UV method with ultrasonic-assisted extraction in methanol developed and validated in this work. Total amount of BPA, which ranged from 0.126 to 0.778 mg/g was compared with the amounts extracted under the same conditions in two artificial human sweat solutions, which differed in chemical composition, ionic strength and pH- value. Mass fractions of BPA extracted with artificial sweat solutions were from 0.047 to 0.175 mg/g with respect to mass of the paper. In average the mass fraction of BPA was 4 times less when extracted with artificial sweat solutions than the maximal amount extracted with methanol. The amounts of extracted BPA raise a concern of health risk through dermal exposure to BPA from thermochromic prints on paper.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Grafička tehnologija

POVEZANOST RADA