Reporting threshold
The area percent below which peaks are not reported. The index uses 0.05 %. Excluded peaks are excluded from the total, so purity is systematically overstated by their sum.
Related terms
- Peak integration
- Determining a peak's area by defining its start, end and baseline. The step where a purity figure is actually decided, and the one least often documented.
- Identification threshold
- The level above which an impurity must be structurally identified rather than merely quantified. ICH Q3A sets it by daily dose.
see also Reporting threshold · Qualification threshold
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 37 glossary terms beginning with R