BEATRIZ FRESCO CALA2026-01-292026-01-29201910.1016/j.talanta.2019.02.0292-s2.0-85061249720https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/30042Analytical ChemistryPreparation of macroscopic carbon nanohorn-based monoliths in polypropylene tips by medium internal phase emulsion for the determination of parabens in urine samplesresearch article