Raw materials are input substances used in both chemical synthesis and processing and include buffers, cleaning agents, common solvents and commonly used synthetic starting materials such as amino acids. Excipients are substances which are used as ingredients in pharmaceutical formulations such as tablets and capsules. Typical excipients include simple salts such as NaCl, solvents, carbohydrates, detergents, flavouring agents and dyes. When these materials are delivered they need to be tested to confirm that they are indeed what they claim to be and have not been inappropriate labelled. It may also be necessary to use a quantitative separative method to demonstrate the quality and content of selected materials. Failure to check on the identity and quality of these materials could result in very costly wastage’s.
Sodium Dodecyl Sulphate
Capillary Zone Electrophoresis
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