HPLC Determination of α-keto Acids from Human Serum Using 2,3-Diamino-2,3-dimethylbutane as Derivatizing Reagent (Khalida Parveen Mahar, Muhammad Yar Khuhawar, Kulsoom Ubedullah Abbasi, Gulam Qadir Shar, Rafia Azmat, & Jameel Ahmed Baig , Trans.). (2025). Pakistan Journal of Analytical & Environmental Chemistry, 14(2), 8-15. https://doi.org/10.21743/