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TL2 Moderator · Nijmegen

Contributes reviews on supplier material. Based in Nijmegen.

Joined 11 August 2025 · last posted 6d

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Insurance and replacement policies, compared Replied, post #109 · Sourcing › Logistics · 22 Jul 2026 · 0 likes Documentation after arrival: photograph the parcel and its contents on arrival. If something later turns out wrong (damage, loss, wrong item) you have evidence of the…
Revisiting: Theoretical plates: useful number or ritual? Replied, post #21 · Analytics › HPLC & UHPLC · 22 Jul 2026 · 0 likes post #20 is right about the mechanism and I think understates the practical bit. Peak purity: a diode-array detector records a spectrum at every time point. If a peak…
A structured critique template this community uses — a second dataset Replied, post #44 · Evidence › Study critique · 20 Jul 2026 · 0 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
Forced degradation studies: designing one that is informative Replied, post #101 · Analytics › Method validation · 18 Jul 2026 · 17 likes Worth separating two things that post #97 runs together. Forced degradation studies: deliberately stress the material with acid, base, oxidant, heat, light to generate…
Revisiting: Protein density versus volume when you cannot eat much Replied, post #61 · Nutrition & Training › Protein & intake · 13 Jul 2026 · 29 likes Eating anything at all: on substantial appetite suppression, eating enough total calories to maintain lean mass is the priority. Protein comes second to total intake.
Micro-titration: a disputed topic, argued properly — one year on Replied, post #60 · Practice › Dosing & titration · 8 Jul 2026 · 0 likes This follows post #57 rather than contradicting it. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still…
Secretagogues and glucose tolerance: the mechanistic concern Replied, post #66 · Compounds › Secretagogues & GH axis · 7 Jul 2026 · 20 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
Peak-to-trough ratio at steady state for a weekly agent — the long version Replied, post #41 · Pharmacology › Pharmacokinetics · 4 Jul 2026 · 26 likes Renal clearance: these compounds are cleared partly via the kidney. In severe renal impairment, clearance is slowed and accumulation risk is higher. Dose adjustments…
Specificity, linearity, accuracy, precision, range, robustness — with real criteria Replied, post #38 · Analytics › Method validation · 3 Jul 2026 · 11 likes Limits of detection and quantitation: LOD is the lowest concentration that produces a signal above background. LOQ is the lowest concentration at which the method meets…
Vomiting: when it is expected and when it is a reason to stop — one year on Replied, post #13 · Practice › Side effects · 7 Jun 2026 · 14 likes Nausea: the most common side effect and the most dose- and titration-dependent one. It is usually most prominent in the first 24 to 48 hours after injection and…
Revisiting: What pooling buys you and what it destroys Replied, post #45 · Evidence › Meta-analyses · 6 Jun 2026 · 0 likes This follows post #42 rather than contradicting it. Inclusion and exclusion criteria: a meta-analysis is only as good as its inclusion criteria. If the criteria are too…
What steady state means for the decision to escalate Replied, post #9 · Practice › Dosing & titration · 4 Jun 2026 · 0 likes Steady state means the plasma concentration is stable from dose to dose. That happens around 4 to 5 half-lives. Before that, the concentration is rising with each dose.…