Analytical methods
HPLC, UPLC, and LC-MS: Documentation Basics
A plain-language overview of chromatography and mass spectrometry terms that may appear on peptide COAs.
Important scope note: This article is for qualified in-vitro laboratory research context only. It does not provide medical, legal, veterinary, dosing, preparation, injection, ingestion, administration, diagnosis, treatment, prevention, mitigation, compounding, or consumer health guidance.
Key takeaways
- ✓Chromatography-related terms often relate to separation and purity review.
- ✓Mass spectrometry-related terms often relate to molecular identity review.
- ✓Method details and acceptance criteria belong to the issuing laboratory's documented process.
Chromatography terms
HPLC and UPLC are chromatography-related terms commonly seen in analytical documentation. In a COA context, they may be used to support review of purity or separation-related observations for a specific batch sample.
The specific instrument setup, method conditions, and acceptance criteria are lab-controlled details. A summary result should be read as part of the complete batch document rather than as a standalone claim.
Mass spectrometry terms
LC-MS or MS language generally indicates that mass spectrometry was used in the analytical workflow. In documentation, it may support molecular identity review by comparing observed signals with expected reference information.
Not a use guide
Analytical-method education is not a product-use protocol. This page does not provide preparation, handling beyond ordinary laboratory documentation context, dosing, administration, or application instructions.