Peptide glossary · Analysis
Purity
The target peptide's share of the peptidic components in a sample, usually measured by RP-HPLC. High purity says nothing about the peptide content of the weighed material.
In the lab
Values from 95 to over 99% are common for research peptides. The purity needed depends on the experiment; higher values make sense for sensitive assays.
Read morePeptide content vs purity: the difference explainedMore terms: Analysis
- AggregationPeptide molecules clumping together, often with hydrophobic sequences.
- Amino acid analysisA method in which the peptide is fully hydrolysed and the individual amino acids are measured.
- Area percentThe unit of HPLC purity: the main peak's area divided by the area of all peaks.
- ChromatogramThe curve an HPLC run produces: detector signal over time.
- CounterionThe ion that balances the charge of a peptide salt, such as trifluoroacetate or acetate.
- DeamidationA degradation route in which asparagine or glutamine lose their amide group.
For laboratory research use only. Not for use in humans or animals.