HPLC today is the dominant method in pharmaceutical analysis. It is the most versatile technique for quickly analyzing large numbers of different samples: checking purity in the development of drugs and quality assurance in the process of quality control of final products.
HPLC is a powerful separation method, suited to resolving a large number of similar substances in a short time. No other method can do this and at the same time provide the quantitative and qualitative information that HPLC does.