Calculator
Net Peptide Content Calculator
Work out how much of a weighed peptide sample is peptide, from the gross mass and the peptide content percentage on its certificate.
From the certificate
Result
Enter a gross mass and the peptide content percentage from the certificate for that lot.
Why purity and peptide content are different numbers
HPLC purity is the share of UV-absorbing material that is the target peptide. It does not see water, counter-ions or residual salts, all of which are part of the mass in the vial. Peptide content, usually measured by amino acid analysis, is the share of the weighed mass that is peptide at all. See peptide purity and how it is measured for the longer explanation.
Where the percentage comes from
From the certificate for your lot. This calculator does not assume a typical figure, because peptide content varies by sequence, salt form and lyophilisation, and an assumed figure would be a guess presented as a result.
All products sold by Onex Peptides are supplied strictly as reference materials for in vitro laboratory research and analytical use. They are not drugs, foods, cosmetics or medical devices, and they are not for human or veterinary use, consumption or administration of any kind.