Verification
Verification: 5 articles from Peptides Info. Handling, storage and laboratory reference.
Endotoxin and Bioburden in Peptide Preparations: What Testing Establishes
Chemical purity, sterility and endotoxin content are three independent properties of a preparation. This is what endotoxin is, why it confounds cell-based assays, and what each test method establishes.
Documentation and Batch Traceability: Minimum Record Sets for Peptide Material
What to record for received batches and for every solution prepared from them. Field-by-field record sets, label content, excursion logging and a receiving-to-first-use procedure.
Mass Spectrometry and Peptide Identity: What a Mass Match Establishes and What It Does Not
A mass measurement establishes composition, not the order of residues. This is where the reported number comes from, why monoisotopic and average masses produce false mismatches, and how to read an offset.
HPLC Purity: What the Figure Measures and What It Omits
A purity percentage is one peak's area as a share of the total integrated area, under one method, at one wavelength. This is what that includes, what it leaves out, and how to tell whether a stated figure is interpretable at all.
Reading a Peptide Certificate of Analysis: Field-by-Field Reference
A certificate of analysis records the results of tests performed on one batch. This is a field-by-field reference to what each entry states, how it is determined, and where it fails.