QLD AnalyticalIndependent testing record

Sample testing guides

Research-focused guides to how QLD Analytical handles mail-in compound and peptide samples: what we test, what a certificate shows, and how to order the standard identity, purity and content panel.

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Analytical methods

These pages describe the techniques used in our standard panel. They are informational only — not a product catalogue.

HPLC purity testing

How reversed-phase HPLC is used to report the target compound versus related substances in your sample.

Mass spectrometry identity testing

How molecular mass and fragmentation data support identity confirmation for labelled samples.

Compound-specific guides

Examples of research and investigational sample types we receive. Naming a compound is not an endorsement. Use the name on your vial when you order.

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