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Quality control

Quality Control Services

The Proteome Factory AG offers quality control services of proteins and peptides to determine purity and identity of the samples. Beside most modern mass spectrometric techniques several other protein chemical methods like N-terminal sequence analysis, HPLC and electrophoresis are used according to Proteome Factory's SOP (Standard Operating Procedures) to ensure quality of analysis.

The quality control services are applied to protein drugs, recombinant proteins and synthetic peptides to determine their purity and identity. Also other biomolecules can be analyzed on request.


The following standard services for quality control are offered:

Quality Control Services for Proteins

• Determination of protein mass by MALDI-MS
• Determination of protein mass by ESI-MS
• Determination of protein mass by FT-ICR-ESI-MS
• N-terminal sequencing of proteins
• Purity control by reverse phase HPLC
• Purity control by electrophoresis (SDS-PAGE, IEF, 2DE)
• Protein concentration determination

Quality Control Services for Peptides

• Determination of peptide mass by MALDI-MS
• Determination of peptide mass by ESI-MS
• Determination of peptide mass by nanoLC-ESI-MS
• N-terminal sequencing of peptides
• Purity control by reverse phase HPLC