Educational Resource
Understanding Research Peptide Testing
Analytical testing in peptide chemistry establishes two essential facts: identity (is the compound the intended molecular structure?) and purity (what proportion of the material is the target sequence?).
High-Performance Liquid Chromatography
HPLC is the primary analytical method used in the peptide industry to separate and quantify chemical components. By measuring peak retention and absorbance, the chromatography profile calculates the percentage purity of the target peptide sequence relative to minor synthesis byproducts.
Mass Spectrometry (MS / LC-MS)
Mass spectrometry measures the mass-to-charge ratio (m/z) of ionized peptide molecules. This confirms the exact molecular weight and structural identity of the synthesized sequence against its theoretical molecular formula.
Manufacturer Records & Documentation Access
ResQ Research works closely with specialized manufacturing partners that perform analytical HPLC and MS characterization during synthesis. We archive available batch specification sheets and certificates of analysis (COAs) for reference compounds across our catalog.
Available COAs and technical datasheets are organized by compound in our documentation repository and can be viewed or downloaded directly.
If your research protocol requires specific lot-level characterization details not yet published in the library, our support team can retrieve available records upon request.