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Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Defined term · Analytical chemistry

Chromatographic purity

The area of the main peak as a percentage of total integrated area under stated conditions. A relative measure that assumes comparable molar absorptivity across species and that does not detect…

Document identifier
CEI-GT-130
Series
Defined term
Version
1.0
Published
30 Jul 2026
Last reviewed
30 Jul 2026
Certainty
Not rated

§1Chromatographic purity

§1.1Also known as

Area percentage purity HPLC purity

§1.2Category

Analytical chemistry — Terms describing the determination of identity, purity, content and quality.

§1.3Related terms

  • Peptide content — The mass fraction of a lyophilisate that is peptide, the remainder being water, counter-ion and residual solvent. Determined by amino-acid analysis or nitrogen…
  • Integration window — The retention-time range over which peak areas are summed. Changing the window changes the reported purity without changing the material, which is why the Institute…
Compound Evidence Institute · CEI-GT-130 · https://compoundevidence.com/glossary/chromatographic-purity/ · retrieved 30 July 2026
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