Peptide glossary · Analysis
Peptide content
The share of peptide in the whole weighed mass. The rest is mainly counterions and water. For peptide salts it is often between about 60 and 90%.
In the lab
Peptide content is measured by amino acid analysis or nitrogen determination. For stock solutions the weighed mass is divided by the peptide content.
Read morePeptide Content and Batch Testing: What to Check Before BuyingMore 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.