Optimization of HPTLC densitometric method for curcuminoids and polyphenolics in an ayurvedic Emblica officinalis and Curcuma longa based Nishamalaki formulation by Box-Behnken design. Indian Journal of Traditional Knowledge (IJTK), [S. l.], v. 23, n. 8, p. 719–728, 2024. DOI: 10.56042/ijtk.v23i8.4315. Disponível em: https://or.niscpr.res.in/index.php/IJTK/article/view/4315. Acesso em: 15 may. 2026.