In a lab vessel, you may dip a ThinProbe 200 probe, often complemented by a Ph probe with similar dimensions.

In pharma, an important case is testing a drug for medical marketing approval. The first test starts in a small vessel, and then continues at a larger scale. The concentration information has a potential to speed up the approval process.

Pharmaceutical production is a batch process involving a mixture of components, each with a different refractive index. In the laboratory, we must recreate this production process. There may be several process steps, such as evaporation, addition of components, chemical reactions, or polymerization. Each step changes the refractive index, but the expected value after every step is known. Since the refractive index is the sum of all components, ThinProbe functions as a checksum, allowing you to assess the process step by step. This can save time spent on laboratory work.

The process can be scaled up to bigger vessels using the same instrument, the ThinProbe.