LC-MS Peptide Identity Confirmation Explained
How LC-MS confirms peptide identity: separation, ionization, mass measurement, and why observed vs. expected mass matters on a COA.
Research Library
Source-linked guides for reading laboratory records, matching lots, and understanding the limits of analytical results.
Analytical Methods
4 published guides
Peptide Purity Testing: How to Read HPLC and MS Results
Learn what HPLC and mass spectrometry measure, how to read peptide test reports, and which questions to ask before ordering for laboratory research.
Peptide Purity vs Content: What’s the Difference?
A 99% pure peptide can still have low net content. Learn how HPLC purity and net peptide content differ—and why both matter for dosing.
Peptide Purity vs. Content: What Does 99% HPLC Mean?
A 99% HPLC result and a milligram result answer different questions. Learn to compare purity, peptide content and vial quantity without mixing their definitions.
Research references
Open the record or standard that remains the source of truth.