Optimizing Uv Spectrophotometry: A Reliable Method For 2-Hydroxybenzoic Acid Analysis In Face Serum. International Journal of Environmental Sciences, [S. l.], v. 11, n. 5s, p. 731–744, 2025. DOI: 10.64252/jqe3y383. Disponível em: http://theaspd.com/index.php/ijes/article/view/1265.. Acesso em: 22 sep. 2025.