HPLC and MS Notes for Procurement Teams
Updated 2026-07-24 · 5 min read
HPLC and MS entries on a COA describe analytical methods applied to a specific lot. Procurement teams should confirm the lot match, read the reported result, and keep the record with receiving paperwork — not treat marketing copy as a protocol.
HPLC in plain language
High-performance liquid chromatography (HPLC) is commonly used to estimate purity or related-substance profiles for peptide lots. The exact column, gradient, and acceptance criteria belong in the COA or method appendix.
When comparing vendors, look for lot-specific files rather than generic purity claims on a product page.
Mass spectrometry (MS) role
MS helps confirm molecular identity for a lot under test. A COA may list observed mass, charge states, or deconvoluted molecular weight depending on the lab format.
Identity and purity are related but distinct. A strong purity number without identity data is incomplete for strict receiving workflows.
How BioLight Labs presents records
Product pages link to available lot documentation where provided. The COA Library aggregates records for search by product, lot, test type, and status.
If a lot you received is not listed, contact Hello@biolightlabs.com with your order reference so the team can locate the correct file.