HPLC Determination of α-keto Acids from Human Serum Using 2,3-Diamino-2,3-dimethylbutane as Derivatizing Reagent. Pak. J. Anal. Environ. Chem. [Internet]. 2025 Apr. 10 [cited 2025 Jul. 12];14(2):8-15. Available from: https://pjaec.pk/index.php/pjaec/article/view/350