Extraction and quantification of caffeine in different tea bags using UV-visible spectroscopy and iodometric back titration. JOURNAL OF BASICS AND APPLIED SCIENCES RESEARCH, [S. l.], v. 3, n. 6, p. 41–46, 2025. DOI: 10.4314/jobasr.v3i6.5s. Disponível em: https://jobasrfudutsinma.com/index.php/ojs-files/article/view/40. Acesso em: 7 mar. 2026.