Peptide Testing Statistics
Interpreting quality data requires a defined sample set, consistent methods and transparent reporting.
What a meaningful testing study needs
- The number of unique samples and the collection period.
- Clear inclusion and exclusion criteria, including treatment of repeat submissions.
- Methods, reporting limits and uncertainty for the measurements compared.
- A defined discrepancy threshold and a denominator for each rate.
- A distinction between samples submitted to a laboratory and the wider market.
Purity, identity and contaminants are different measurements
HPLC purity is based on the chromatographic response under the selected method. It does not alone measure water, counterions, biological activity or clinical safety. Identity and contaminant panels answer different questions.
A discrepancy against a supplier certificate must be assessed in context: the same lot, equivalent methods, sample handling and the agreed specification. A difference is not automatically evidence of fraud.
Ready to test your peptides?
Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
- validated analytical methods, independent of any supplier
- 5–7 business days for eligible routine testing
- Traceable COA with chromatograms and method parameters
Use results for your own batch
Our public pages do not present aggregate failure rates or supplier rankings without a reconciled dataset and method. For procurement and research quality decisions, obtain a report for the material you will use.
Understanding verified results · HPLC purity testing · Mass spectrometry identity confirmation