SOLEDAD RUBIO BRAVO2026-01-292026-01-29202110.1016/j.chroma.2020.4617772-s2.0-85097580410https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/32725Analytical ChemistryBiochemistryOrganic ChemistryAnalytical ChemistryBiochemistryOrganic ChemistryExploring polar hydrophobicity in organized media for extracting oligopeptides: application to the extraction of opiorphin in human salivaresearch article