z.onwuka
TL2 · Turku
Contributes reviews on supplier material. Based in Turku.
Joined 17 December 2024 · last posted 6d
74Posts here
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[2026 update] Charge states for a 4 kDa peptide, worked through Replied, post #91 · Analytics › Mass spectrometry · 18 Apr 2026 · 32 likes Electrospray ionisation produces multiply charged ions. For a 4 kDa peptide you expect mostly 2+, 3+, and 4+ charge states. Reading an electrospray spectrum means…
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Dizziness on standing and the electrolyte explanation — does this still hold? Replied, post #63 · Practice › Side effects · 1 Apr 2026 · 32 likes Where the Dizziness on standing reasoning breaks down for me is the step from the group result to the individual case. That step is almost never argued for.
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Spreadsheets: an appreciation — what changed since Replied, post #83 · Lounge › Off topic · 27 Jun 2026 · 31 likes The number people quote for Spreadsheets is a central estimate presented without its interval, and the interval is wide enough that the estimate is nearly uninformative…
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Washout: how long is long enough, and for what purpose Replied, post #14 · Pharmacology › Pharmacokinetics · 31 Mar 2025 · 28 likes Checked the washout claim against the primary source this morning. It survives, with a narrower scope than the version quoted here. Posting the narrower scope.
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Reading a rodent study on a secretagogue without over-extrapolating — the long version Replied, post #42 · Compounds › Secretagogues & GH axis · 15 Jul 2026 · 26 likes Taking post #41 at face value and following it one step further. A mass result for a short peptide is more discriminating than for a long one, because a single residue…
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An 18-month record including the parts that went badly Replied, post #58 · Outcomes › Progress reports · 3 Jul 2026 · 25 likes Agreed, and I will stop repeating the version of this I had been repeating.
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