Photodiode array (PDA)
A UV detector acquiring a full spectrum at every time point rather than one or two wavelengths. Enables peak-purity assessment and the 280/214 ratio.
Related terms
- Peak purity
- Evidence from a photodiode-array or mass detector that the spectrum is constant across a peak, indicating no co-eluting species with a different chromophore. Silent on diastereomers.
see also Diastereomer
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 22 glossary terms beginning with P