HPLC testing separates, identifies, and quantifies compounds in liquid samples using a pressurized mobile phase, analytical column, and detector. This article explains the core principles, system components, workflow, and data interpretation behind HPLC analysis.
Peptide stability is influenced by sequence, chemical reactivity, formulation, storage conditions, and laboratory handling. Understanding these factors helps researchers maintain peptide quality and reduce experimental variability.
Peptide purity percentages are essential quality indicators, but they do not tell the whole story. Understanding how purity is measured and how it differs from identity, content, and activity helps researchers choose the right grade for each application.
Mass spectrometry measures ions by mass-to-charge ratio to identify, characterize, and quantify molecules. This article explains the main components, workflows, applications, and limitations of MS.