Ion suppression
Reduction in analyte ionisation caused by a co-eluting species or a mobile-phase additive. Trifluoroacetic acid is a strong suppressor.
Related terms
- Trifluoroacetic acid (TFA)
- Mobile-phase additive at 0.1 %. Gives excellent peptide peak shape and suppresses electrospray ionisation. Also the most common peptide counter-ion.
see also Counter-ion · Ion suppression
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 13 glossary terms beginning with I