Application of Rice Husk-Derived SBA-15 Bifunctionalized with C18 and Sulfonic Groups for Solid-Phase Extraction of Tropane, Pyrrolizidine, and Opium Alkaloids in Gluten-Free Bread - Vera-Baquero, Fernando L; Ganan, Judith; Casado, Natalia; Perez-Quintanilla, Damian; Morante-Zarcero, Sonia; Sierra, Isabel (Foods, 2025)