Terms beginning with V
6 of 238 glossary terms.
- 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.
- Valley-to-valley integration
- Baselining a small peak from valley to valley rather than to the true baseline. Assigns the overlap to the larger peak and understates the smaller one.
- Void volume
- The volume of mobile phase within the column. Determines the dead time. A void marker injection calibrates the retention axis and is cheap and rarely done.
- Validation
- Documented demonstration that a method is fit for its purpose, per ICH Q2(R2). Not published for any supplier method in this index.
- Verification status
- The index's summary of how complete a record is: verified, identity consistent, purity only, method limited, partial, or not applicable.
- Vial fill volume
- The nominal liquid volume filled before lyophilisation. Determines cake geometry and, with concentration, the mass per vial.
see also Resolution (R) · Shoulder
see also Drop-line integration
see also Column dead time (t₀)
see also Method limited · Partial
see also Fill weight