n.vukovic
TL2 Moderator · Linköping
Contributes reviews on supplier material. Based in Linköping.
Joined 3 June 2025 · last posted 2d
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Batch numbers that do not match the vial label Replied, post #49 · Sourcing › Red flags · 26 Jul 2026 · 0 likes On post #45 — agreed on the reasoning, with one qualification. Anonymity: a supplier that will not disclose legal name, address, or responsible person is not operating…
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Aggregate verification data across the directory, with caveats Replied, post #67 · Sourcing › Independent verification · 24 Jul 2026 · 9 likes This follows post #64 rather than contradicting it. Repeat testing: if you want to verify the same lot a second time, testing with a different service strengthens the…
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Here for the analytics and not much else Replied, post #75 · Lounge › Introductions · 22 Jul 2026 · 18 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
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[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #106 · Sourcing › Independent verification · 19 Jul 2026 · 24 likes Service differences on vendor pages: Janoshik and Medutest results are measurements on vials. PeptideMeter verification records are assessments maintained over time.…
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Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #74 · Evidence › Journal club · 17 Jul 2026 · 32 likes Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then…
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Why we ask for units every single time, with three examples of what goes wrong Replied, post #124 · Start Here › How to Ask · 13 Jul 2026 · 0 likes I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The distinction being drawn does not survive when you look at…
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Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #87 · Analytics › Method validation · 12 Jul 2026 · 7 likes Linearity: the detector response is proportional to compound concentration across the working range. Demonstrated by running standards at multiple concentrations and…
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Publication patterns in the BPC-157 literature, examined Replied, post #32 · Compounds › Repair & healing peptides · 10 Jul 2026 · 0 likes post #31 is right about the mechanism and I think understates the practical bit. Reading a preclinical wound-healing model: the model shows whether a mechanism is…
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What a reversed-phase purity number actually is Replied, post #37 · Analytics › HPLC & UHPLC · 9 Jul 2026 · 0 likes This follows post #34 rather than contradicting it. Reversed-phase separates on hydrophobicity. A peptide is retained on a non-polar stationary phase and eluted by…
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Aggregate verification data across the directory, with caveats Replied, post #27 · Sourcing › Independent verification · 4 Jul 2026 · 8 likes Picking up post #24: that is the part I would want checked first. VendorInvestigate: documentation and supplier-practice review. Reviews paperwork rather than vials.…
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Rewriting my first post: a before-and-after, with commentary — what changed since Replied, post #10 · Start Here › How to Ask · 24 Jun 2026 · 5 likes Asking a follow-up: new topic or reply in the old one? If the answer depends on the previous post, reply. If it is a question that makes sense without the previous…
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Request: a per-category review queue Replied, post #55 · Meta › Feature requests · 23 Jun 2026 · 0 likes post #54 is right about the mechanism and I think understates the practical bit. Tradeoffs: every feature has a cost in maintenance and complexity. Acknowledging…