Biochar-based polymeric film as sustainable and efficient sorptive phase for preconcentration of steroid hormones in environmental waters and wastewaters - Francesca Merlo; Enriqueta Anticò; Rachele Merli; Alba Cabrera-Codony; Clàudia Fontàs; Andrea Speltini; Antonella Profumo (Analytica Chimica Acta, 2024)