Abbasi, K.U., M.Y. Khuhawar, K.P. Mahar, Arfana Mallah, and A. Nawaz Siyal. “Gas Chromatographic Determination of α-Keto Acids in Pharmaceutical Preparation Using 1,2-Propylenediamine As Derivatizing Reagent”. Asian Journal of Chemistry 25, no. 3 (October 8, 2012): 1211–1215. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_3_7.