en-IE
What we test, how we test it, and what is published with each lot.
Identity is confirmed by electrospray mass spectrometry against the expected molecular mass of the sequence.
Purity is determined by reverse-phase HPLC with the method, gradient and detection wavelength recorded on the certificate.
Water content, appearance and net peptide content are recorded at release, and the full packet is archived against the lot code for the life of the batch.