KOGAWA, Ana Carolina; SALGADO, Hérida Regina Nunes. Quantitative analysis of pharmaceutical products by spectrophotometry in the infrared region: a practical review. Drug Analytical Research, Porto Alegre, v. 6, n. 2, p. 3–7, 2026. DOI: 10.22456/2527-2616.127631. Disponível em: https://seer.ufrgs.br/index.php/dar/article/view/127631. Acesso em: 1 aug. 2026.