Tag: Pharmaceutical analysis

In forensic toxicology, tests for drugs are specifically defined as either qualitative, confirming the presence or absence of a substance, or quantitative, measuring its precise concentration. The answer to whether drugs are used qualitative or quantitative is not a simple either/or, but rather a sophisticated interplay of both principles throughout a drug's lifecycle, from discovery to clinical application.

Developed over 140 years ago by Danish chemist Johan Kjeldahl, the Kjeldahl method remains a globally recognized analytical technique for determining nitrogen content in various materials, including pharmaceutical products. In pharmacy, **what is Kjeldahl method in pharmacy?** is a key question that relates to quantifying nitrogen, which serves as a proxy for protein content or is a component of active pharmaceutical ingredients (APIs) and excipients. This comprehensive guide explores the principle, procedure, and specific applications of this robust analytical process within the pharmaceutical industry.