Quality Metric

Peptide Purity

Peptide Purity (HPLC Purity)

Research Use Only · Not for Human Consumption

Peptide purity refers to the percentage of the target peptide molecule relative to all other substances present in the sample. It is measured by High-Performance Liquid Chromatography (HPLC), which separates components by their affinity for a stationary phase and measures peak areas. Research-grade peptides typically target ≥98% purity. Lower purity indicates the presence of truncated sequences, modified peptides, residual protecting groups from synthesis, or other impurities.

Key Facts

Measurement method
HPLC (reverse-phase)
Research grade standard
≥98%
Reported as
Percentage of peak area
Confirmed in
Certificate of Analysis (COA)

Research Applications

  • Quality control in peptide manufacturing
  • Research reproducibility verification
  • Batch acceptance testing
  • Regulatory compliance documentation

Frequently Asked Questions

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