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    📑 COA, Purity & Lab Testing

    Certificates of analysis, HPLC, mass spec, Janoshik reports, third-party verification, and how to read testing data.

  • R 📌 🔒 How to read a New-U COA (pinned reference) by research-notes New-U Staff 5mo ago 0 votes 0 replies 4160 views
  • A First third-party report — sanity-check my read? by AssayAsha 1mo ago 0 votes 3 replies 221 views
  • N Total newbie: what does "area percent" actually mean? by NoviceNova 1mo ago 0 votes 2 replies 154 views
  • C How to actually read an HPLC purity report by COAClaire 1mo ago 0 votes 6 replies 2371 views
  • B Area percent vs weight percent on a COA — what is the difference? by BenchRookieBex 2mo ago 0 votes 0 replies 336 views
  • H HPLC vs LC-MS: settle this once and for all by HPLC_Harry 2mo ago 0 votes 8 replies 1376 views
  • B War story: the COA batch number did not match the vial label by BatchCheckBen 2mo ago 0 votes 6 replies 1571 views
  • J Third-party testing vs in-house COA — how much should it sway you? by JanoshikJo 2mo ago 0 votes 3 replies 1040 views

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