Enas Alqudah, Malak Abbadi, Sawsan Alqadoomi, Ibtihal Abo Hameda, S. Arar, K. Sweidan
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Identification and Separation of the Degradation Products of Vildagliptin Tablets and Raw Material using LC-MS and NMR, and then Exploration of the Corresponding Degradation Pathways
A gradient high performance liquid chromatography (HPLC) method has been developed for the qualitative and quantitative analyses of vildagliptin related substances. This method is based on using of RP-C18 (250 × 4.6 mm×5µm) and gradient elution with phosphate buffer and methanol as mobile phase. Various forced degradation studies were conducted to establish an impurity profile for vildagliptin in the tablet formula. Three degradation products were produced upon exposing vildagliptin to different degradation conditions (acidic, basic, oxidative, photolytic, aqueous and thermal); their structures were characterized using LC-MS and NMR (1H NMR, 13C NMR and DEPT) techniques. Some excipient components, examined in this study, had major effect towards producing any extra new degradation products.
期刊介绍：
The Jordan Journal of Pharmaceutical Sciences (JJPS) is a scientific, bi-annual, peer-reviewed publication that will focus on current topics of interest to the pharmaceutical community at large. Although the JJPS is intended to be of interest to pharmaceutical scientists, other healthy workers, and manufacturing processors will also find it most interesting and informative. Papers will cover basic pharmaceutical and applied research, scientific commentaries, as well as views, reviews. Topics on products will include manufacturing process, quality control, pharmaceutical engineering, pharmaceutical technology, and philosophies on all aspects of pharmaceutical sciences. The editorial advisory board would like to place an emphasis on new and innovative methods, technologies, and techniques for the pharmaceutical industry. The reader will find a broad range of important topics in this first issue.
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