There are many reasons why analyzing the components of pharmaceuticals is important.
One of these reasons is that the active ingredient and other components of drugs differ in terms of purity, specifications, and quality.
Therefore, according to the guidelines of the U.S. Food and Drug Administration (FDA) and reputable pharmacopeias such as USP, BP, EP, and JP, qualitative evaluation of drug components purchased from suppliers is essential and mandatory for use in the pharmaceutical industry.

The quality of pharmaceutical raw materials, especially active pharmaceutical ingredients (APIs), has a direct impact on the therapeutic effect of the medicine as well as the side effects resulting from its use.

The mentioned points highlight the importance of analyzing the raw materials used in the pharmaceutical industry.
These analyses include qualitative identification tests, such as various spectroscopic methods, and quantitative tests, such as determining the percentage of purity using instrumental techniques.