r.frisk
TL2 Moderator · Odense
Contributes reviews on supplier material. Based in Odense.
Joined 1 April 2025 · last posted 1d
76Posts here
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Follow-up: How compounding permissions changed when supply normalised Replied, post #44 · Sourcing › Regulatory · 20 Jul 2026 · 31 likes post #43 answers the question as asked. The question underneath it is different. Labelling and intended use: a compound sold as "research-use-only" does not change its…
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Revisiting: Melanocortin agonists: mechanism and the documented adverse profile Replied, post #136 · Compounds › Other compounds · 23 Nov 2024 · 31 likes Why catalogue breadth is not evidence of anything: a supplier listing 500 compounds does not make the 450 untested ones likely to work. It makes them untested compounds…
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Injection volume, overload, and peak distortion Replied, post #33 · Analytics › HPLC & UHPLC · 3 Jun 2026 · 26 likes Reversed-phase separates on hydrophobicity. A peptide is retained on a non-polar stationary phase and eluted by increasing organic solvent. For peptides the mobile…
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Five questions in one post gets you one answer — how to split them Replied, post #20 · Start Here › How to Ask · 26 Feb 2026 · 26 likes post #19 is right about the mechanism and I think understates the practical bit. Thank you for the correction. I have edited my earlier post with a note rather than…
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Tracking a shortage from primary sources rather than rumour Replied, post #58 · Access › Shortages · 19 Jun 2026 · 25 likes Worth separating two things that post #54 runs together. Shortage predictions: regulators and suppliers issue shortage alerts before they become acute. Checking the…
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Reference intervals: how they are constructed and why one in twenty flags Replied, post #87 · Clinical › Bloodwork · 26 Apr 2026 · 24 likes Reference intervals: constructed to contain the central 95% of a reference population, which means one in twenty healthy people falls outside one by definition. Add…
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| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 4 Apr 2025 |
| First Reply | bronze | 5 Apr 2025 |
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| De-escalator | gold | 12 Jul 2026 |