Discipline
Identity, Purity & Assay
The three analytical questions that define material characterization: which molecule is present, how much of the sample it represents, and how active it is. Distinct concepts that a single number can never capture on its own.
2 articles · approx. 12 min total reading
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What Does 99% Purity Mean?
Reading a chromatographic purity figure for what it does — and does not — say.
Read the article →6 min read · Identity, Purity & Assay
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2 articles in Identity, Purity & Assay.
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Suggested reading order
Read these in sequence to build understanding from the ground up.
- What Does 99% Purity Mean?Reading a chromatographic purity figure for what it does — and does not — say.6 min read
- Purity vs Identity vs PotencyThree distinct analytical concepts: composition, which molecule, and activity.6 min read