Research resources
Plain-English explanations of how research peptides are analysed, documented and handled in a laboratory setting. These pages cover analytical methods and paperwork only — they are not usage guidance of any kind.
Certificates & documentation
- 7 min read
What is a peptide Certificate of Analysis?
A COA is the analytical record for one specific batch of material. This page explains what belongs on one, what each field means, and how to tell a batch-specific certificate from a generic document.
Read guide - 7 min read
Understanding batch-specific peptide testing
Why a certificate only means anything at batch level, what a batch actually is, and how a batch identifier connects a vial to its analytical record.
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Analytical testing
- 8 min read
How to read a peptide HPLC report
Chromatograms look intimidating and are mostly readable with a handful of concepts. This page walks through the axes, the peaks, the integration table and the method conditions.
Read guide - 7 min read
HPLC vs mass spectrometry for peptide analysis
These two techniques answer different questions and are complementary rather than competing. Here is what each measures, what each misses, and why certificates usually report both.
Read guide - 8 min read
How peptide purity is tested
A purity figure is the end of a process, not a property read off an instrument. This page follows that process from sample handling through to the number printed on a certificate.
Read guide - 6 min read
What does a peptide purity percentage mean?
The most misread number on a certificate. This page explains what a purity percentage measures, what it silently leaves out, and when two figures are not comparable.
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Sourcing & handling
- 7 min read
What researchers should check when sourcing research peptides in the UK
A practical checklist covering documentation, traceability, labelling and supplier transparency, written for people evaluating a supplier rather than a compound.
Read guide - 7 min read
Peptide storage and laboratory handling
General principles for storing and handling lyophilised research material in a laboratory setting, and why the supplier's own documentation should always take precedence.
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Looking for a specific batch?
Published certificates are searchable by product, strength or batch number. Where no certificate is published for a batch, none is held.