#mass-spectrometry
3 pieces tagged mass-spectrometry.
Reading the paperworkSeven ways a certificate of analysis misleadsRepresentative certificates, lot numbers that match nothing, in-house tests dressed as independent, purity without identity, stale dates and purity without net content: each pattern, and what a good certificate shows instead.
Reading the paperworkMass spectrometry identity: what a one-dalton match provesESI and MALDI in plain terms, why a peptide shows up at several m/z values at once, monoisotopic against average mass, and a worked example on a stocked fifteen-residue peptide from its PubChem entry.
Reading the paperworkHow to verify a peptide certificate of analysisHow to check that a peptide lab report is genuine, is about the lot in your hand, and comes from a lab whose accreditation you can confirm, with worked examples for TP-RTA-3, GHK-Cu and kisspeptin-10.
Nothing here is medical advice. Everything on this site is supplied for laboratory research use only.