Area percent
Purity expressed as the main peak's integrated area divided by the total integrated area of all peaks, times 100. A relative quantity. It is not a concentration and not a content.
Related terms
- Assay
- Quantification of an analyte against a material of known content. Distinct from area percent, which compares peaks within one chromatogram.
- Peptide content
- The fraction of total mass that is peptide, %w/w. Distinct from purity, which is a fraction of detected chromatographic area.
- Relative response factor
- The detector response of an impurity per unit mass, relative to the parent. Assumed to be 1.00 in almost all purity determinations, and usually is not.
see also Area percent · Reference standard
see also Area percent · Target-compound content
see also Area percent · Uncertainty budget
Where this term appears
The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.
- Assay report records — the term appears in result tables, peak tables and provenance blocks
- Method references — where the measurement behind the term is defined
- All 17 glossary terms beginning with A