Development of a carbon paste electrode modified with a nanocomposite of mercaptopyrimidine-functionalized HMS silica and gold nanoparticles for total atropine and scopolamine determination in plant-based food supplements - Martinez-Garcia, G; Ganan, J; Perez-Quintanilla, D; Morante-Zarcero, S; Sierra, I (MICROCHEMICAL JOURNAL, 2026)