HPLC Determination of α-keto Acids from Human Serum Using 2,3-Diamino-2,3-dimethylbutane as Derivatizing Reagent. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 14, n. 2, p. 8–15, 2025. DOI: 10.21743/. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/350. Acesso em: 12 jul. 2025.