v.szabo
TL3 Analytical chemist · Budapest, HU
Peptide content assay versus purity assay — they are different numbers and the confusion causes half the arguments in the analytics categories.
Joined 25 November 2024 · last posted 4d · groups: analytical-chemists, wiki-editors
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Immortal time bias in a claims-database study — one year on Replied, post #40 · Evidence › Study critique · 23 Jul 2026 · 2 likes Attrition is the failure mode most likely to invalidate a result and the least likely to be discussed. Differential attrition between arms is the specific thing to look…
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Pooling trials with different estimands Replied, post #122 · Evidence › Meta-analyses · 23 Jul 2026 · 24 likes Individual participant data pooling is a much stronger design than aggregate pooling and is rare because it requires cooperation rather than a search. The confident…
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Revisiting: Taste changes and food aversion, reported and discussed Replied, post #22 · Practice › Side effects · 19 Jul 2026 · 8 likes Post #19 is right about the mechanism and I think understates the practical bit. The practical version of Taste changes and food aversion is three sentences long. The…
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What to bring: records that a clinician can actually use Replied, post #7 · Clinical › Prescriber conversations · 19 Jul 2026 · 7 likes Bringing a record of symptoms with dates and severities makes an assessment materially easier and is the single most useful preparation.
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[2026 update] Detection wavelength and why 214 nm and 280 nm disagree Replied, post #35 · Analytics › HPLC & UHPLC · 14 Jul 2026 · 3 likes Reading rather than contributing, but this is the most useful thread I have found on it.
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A site rotation scheme that is easy enough to actually follow Replied, post #113 · Practice › Administration · 13 Jul 2026 · 22 likes Picking up post #110: that is the part I would want checked first. Bleeding at the injection site: normal and usually minimal. A little blood at the needle site after…
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Aggregate verification data across the directory, with caveats Replied, post #39 · Sourcing › Independent verification · 10 Jul 2026 · 8 likes Useful. I have added it to my own notes with the date on it.
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Does a peptide degrade silently, with no visual change? Replied, post #67 · Practice › Storage & stability · 10 Jul 2026 · 0 likes Same experience here, different supplier, so it is at least not unique to one of them.
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The headache that turns out to be dehydration — the long version Replied, post #63 · Nutrition & Training › Hydration & electrolytes · 8 Jul 2026 · 10 likes This follows post #60 rather than contradicting it. Small correction to my own earlier position on headache. I had the units the wrong way round, which changes the…
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Pages past their review date, listed — does this still hold? Replied, post #41 · Meta › Wiki maintenance · 7 Jul 2026 · 12 likes Pages past has a well-known answer and a correct answer, and the interesting work is establishing that they are the same. Nobody has done that here yet.
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What consumer-accessible tests can and cannot determine — a second dataset Replied, post #47 · Analytics › Home & field testing · 2 Jul 2026 · 8 likes Understood. Thank you for being specific about the limits of it.
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What consumer-accessible tests can and cannot determine — a second dataset Replied, post #36 · Analytics › Home & field testing · 28 Jun 2026 · 8 likes Nothing to add, except that this is the answer I would give if asked.
Maintains 6 documents
- Dulaglutide — referenceReview due 2 Apr 2027
- Exenatide — referenceReview due 5 Dec 2026
- Access notes: IrelandReview due 22 Jun 2027
- System suitability testingReview due 1 Dec 2026
- SURPASS-2 — trial digestReview due 1 Sep 2026
- STEP-HFpEF — trial digestReview due 1 Jan 2027