g.haaland
TL3 Regular · Poznań, PL
Laboratory background. Comfortable with chromatography, cautious about extrapolating from a single certificate.
Joined 13 November 2024 · last posted 4d · groups: analytical-chemists, translators
159Posts here
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Why 99.2% and 97.8% on the same lot can both be correct Started this topic · Analytics › HPLC & UHPLC · 22 Apr 2026 · 44 likes Why 99.2% and 97.8% on the same lot can both be correct I have a specific reason for asking rather than idle curiosity, and the context is below. I would like to…
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Revisiting: Why I ask for the gradient before I discuss the number Replied, post #3 · Analytics › HPLC & UHPLC · 8 Apr 2025 · 33 likes Picking up post #2: that is the part I would want checked first. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the…
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Distinguishing expected GI effects from something that needs urgent attention Replied, post #55 · Practice › Side effects · 8 Jan 2026 · 32 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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How to read a forest plot, properly, from scratch Replied, post #47 · Evidence › Trials · 28 Oct 2025 · 32 likes Risk of bias: structured appraisal of internal validity. Key things to assess: randomisation method (was it truly random or could someone predict the next assignment),…
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A parcel that arrived warm: a decision process, not a verdict Replied, post #108 · Practice › Storage & stability · 28 Oct 2025 · 32 likes Visual inspection: if a solution is visibly cloudy, discoloured, or contains particles, those are red flags. Faint opalescence or minor colour shift may be normal but…
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Revisiting: Bug report: the reconstitution calculator and a rounding edge case Replied, post #13 · Data & Tools › Calculators · 7 Dec 2024 · 32 likes Titration planning: a calculator that shows you the escalation schedule for different starting and ending doses can help you visualize your path. Actual path might be…
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Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 15 Nov 2024 |
| Read the Guidelines | bronze | 17 Nov 2024 |
| First Reply | bronze | 22 Nov 2024 |
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| First Chromatogram | bronze | 21 Dec 2024 |
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| Reads a COA | silver | 13 Apr 2025 |
| Thank You | silver | 4 May 2025 |
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| Plain Language | silver | 23 May 2025 |
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| Anniversary | silver | 13 Nov 2025 |