Osmora Scientific Glossary
Mass spectrometry
An analytical technique that ionizes chemical species and separates the resulting ions by their mass-to-charge ratio, enabling determination of molecular mass and supporting identification.
In plain language
A method that weighs molecules very precisely, used to confirm a peptide is the intended one.
Why it matters in research
It provides the identity evidence on a COA — a different measurement from the purity figure produced by HPLC.
Where you'll encounter it
COA identity sections and combined LC-MS results.
Related terms
Related Academy lessons
Source
- What is HPLC? Shimadzu Corporation, Analysis Basics. Retrieved 2026.