drug testing service

Impurities and the unwanted by-products, especially the potentially toxic compounds, should be strictly controlled below a certain level set by the regulatory agencies. That’s mainly ascribed to the fact that these pharmaceutical impurities such as residual solvents and degradation substances have a significant role in the purity, safety and quality of the end products. Nonetheless, the analysis and purification of both drug-related and process-related impurities are always challenged by the extensive sources include the starting materials, contaminants, reagents, catalysts, solvents, intermediates, excipients and the leachables and degradation products. Additionally, the impurities are generally presented at very low levels and sometimes in complex sample matrices, which requires more sensitive and specific techniques and approaches to identify and separate them.