Resolution (R)
Separation between two peaks: R = 2(t₂ − t₁)/(w₁ + w₂). R = 1.5 is baseline resolution. The index computes and reports R to the nearest named impurity on every record that has one, and applies no acceptance criterion to it — resolution to whichever impurity happens to elute closest is a property of the compound and the gradient, not a system-suitability requirement.
Related terms
- Asymmetry factor (As)
- Peak shape measure taken at 10 % of peak height: the width of the rear half divided by the width of the front half. Symmetric = 1.00. Above 1.50 the index marks integration unreliable.
- Valley
- The minimum of the detector signal between two adjacent peaks. Valley height relative to the smaller peak determines whether the two can be reliably integrated separately.
see also Rule AX-R12
see also Resolution (R) · Shoulder
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