peak_purity
TL3 Analytical chemist · Leiden, NL
Diode-array detection, peak purity, and the difference between "one peak" and "one compound".
Joined 30 July 2024 · last posted 9h · groups: analytical-chemists
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The lowest dose that does anything: is that a real question? Started this topic · Practice › Dosing & titration · 28 Feb 2026 · 43 likes Asking directly, because I could not find a straight answer: The lowest dose that does anything: is that a real question? I have read the maintained page on this and I…
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Hair shedding at month three: mechanism and time course — the long version Replied, post #19 · Practice › Side effects · 30 May 2026 · 32 likes Post #17 is right about the mechanism and I think understates the practical bit. The version of Hair shedding that I was taught turned out to be a teaching…
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Official shortage notices and what they authorise Replied, post #2 · Access › Shortages · 9 Apr 2026 · 32 likes Right — I had this wrong and I am glad to have read it before it mattered.
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Coming back to: Official shortage notices and what they authorise Replied, post #17 · Access › Shortages · 30 May 2025 · 32 likes Switching presentation or strength during a shortage is a prescribing decision rather than a substitution anybody should improvise. I would put a moderate confidence on…
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Endotoxin and why it is a separate question from purity — what changed since Replied, post #61 · Analytics › Impurities & related substances · 29 Jun 2026 · 31 likes Sensible. I would want the same detail before I acted on it either.
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Anaesthesia and elective surgery: the aspiration question Replied, post #67 · Practice › Interactions · 29 Mar 2026 · 30 likes Right, and stated more narrowly than I would have dared to state it.
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