Blog Tag
research quality
2 articles tagged with ‘research quality’
Quality & TestingJuly 7, 2026
How to Verify Peptide Purity: HPLC, Mass Spectrometry, and Red Flags
A practical guide to interpreting HPLC chromatograms, mass spectrometry data, and Certificates of Analysis — with specific red flags that expose low-quality peptide suppliers before they compromise your research.
15 min read
RegulatoryMay 12, 2026
Endotoxin-Free Peptides: Key to Accurate T Cell Assays
Trace endotoxin levels in peptides can distort T cell assay results by triggering non-specific immune responses and false positives. Endotoxins, components of gram-negative bacterial LPS, activate TLR4 and influence various immune cells. Continuous testing since 2016 through certified labs has confirmed negative results for all peptides and pools, ensuring reliable reagents for immunology research.
3 min read