analytical chemistry

2 articles tagged “analytical chemistry”

Synthesis & Manufacturing

Peptide Purity Testing: HPLC vs Mass Spectrometry

A purity certificate claiming 99 percent tells researchers almost nothing without supporting chromatography data—HPLC and mass spectrometry measure different aspects of peptide composition, and conflating them obscures what a sample actually contains.

AdminUpdated Jul 3010 min

Synthesis & Manufacturing

Tesamorelin Fmoc SPPS Synthesis Guide

Master the complete Fmoc solid-phase protocol for tesamorelin synthesis, addressing critical challenges like racemization and aspartimide formation in this demanding 44-amino acid therapeutic peptide.

AdminUpdated Jul 2818 min