Low-Cost Epoxy-Cast Serpentine Lab-on-Chip with Pre-loaded Methyl Red for Smartphone-Based Colorimetric Screening of Free Acidity in Edible Oils. Chemical Interactions, [S. l.], v. 3, n. 3, p. 34–41, 2026. DOI: 10.64354/sdfvqj08. Disponível em: https://cheminters.com/index.php/jci/article/view/102. Acesso em: 12 oct. 2026.