Abbasi. , K., Khuhawar, M. and Bhanger, M. (2010) “Ethyl Chloroformate as Derivatizing Reagent for Gas Chromatographic Determination of Norephedrine, Ephedrine and Pseudoephedrine in Pharmaceutical Preparation”, Asian Journal of Chemistry, 21(2), pp. 1145–1154. Available at: https://asianpubs.org/index.php/ajchem/article/view/18802 (Accessed: 29 November 2024).