Peptide synthesis quality control usually combines chromatographic and mass-based confirmation to verify that the expected product has been made and to assess the presence of major impurities. Additional testing may be added depending on the application.
Reverse-phase HPLC is used to visualize the target peptide peak and the relative amount of by-products.
MS confirms that the expected molecular mass is present and can also provide useful information about the main impurities.
When needed, amino acid analysis or related methods can be used to evaluate actual peptide content beyond HPLC purity alone.
More demanding studies may require more than routine HPLC and MS, especially when exact composition or regulatory expectations matter.
For quantitative assays, difficult sequences, modified peptides, or sensitive downstream studies, basic QC may need to be supplemented with additional analysis such as content testing or composition verification.
Analyze your sequence to better understand peptide behavior:
If your project requires QC beyond standard HPLC and MS, please contact sales@lifetein.com.