Determination of Diclofenac Diethylamine Levels in Emulgel Preparations Using NIR Spectroscopy Combined with Chemometrics. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 23, n. 2, p. 270–276, 2024. DOI: 10.21743/pjaec/2022.12.09. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/38. Acesso em: 13 jul. 2025.