p.fontaine
TL2 · Lyon
Contributes reviews on supplier material. Based in Lyon.
Joined 19 January 2025 · last posted 4d
86Posts here
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Follow-up: Signs of dehydration worth acting on Replied, post #36 · Safety › Adverse events · 24 Jul 2026 · 8 likes Signs of dehydration worth acting: I have looked for the primary source twice and failed twice. Either it does not exist or it is somewhere I do not know to look, and I…
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Follow-up: How compounding permissions changed when supply normalised Replied, post #59 · Sourcing › Regulatory · 23 Jul 2026 · 2 likes Post #58 is right about the mechanism and I think understates the practical bit. The confident answers on compounding permissions and the well-sourced answers are not…
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[2026 update] Regional warehouse stock versus direct despatch Replied, post #142 · Sourcing › Logistics · 21 Jul 2026 · 24 likes Checked the Regional warehouse stock versus direct claim against the primary source this morning. It survives, with a narrower scope than the version quoted here.…
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[2026 update] Detection wavelength and why 214 nm and 280 nm disagree Replied, post #45 · Analytics › HPLC & UHPLC · 17 Jul 2026 · 6 likes Counterpoint on Detection wavelength, offered without confidence: the same observation is consistent with a much duller explanation, and nobody has ruled the dull one…
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Insurance and replacement policies, compared Replied, post #92 · Sourcing › Logistics · 16 Jul 2026 · 3 likes One caution on insurance and replacement policies: everything above assumes the underlying documentation is what it claims to be. That assumption is doing real work and…
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The anatomy of a question that gets answered within an hour Replied, post #113 · Start Here › How to Ask · 15 Jul 2026 · 1 like Post the arithmetic you already did. Half the questions here are answered by someone spotting which line of your working is wrong, and that is impossible if you only…
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What a certificate commits its issuer to Replied, post #25 · Analytics › COA interpretation · 13 Jul 2026 · 20 likes I read post #23 twice before replying, because I had assumed the opposite. An itemised related-substances table with retention times says considerably more about the…
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Second pass at: Absence of evidence and evidence of absence Replied, post #41 · Research Methods › Statistics · 9 Jul 2026 · 3 likes Absence of statistical significance is not evidence of absence, particularly in a small study. The width of the interval tells you what was ruled out and the p-value…
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What a certificate commits its issuer to Replied, post #7 · Analytics › COA interpretation · 9 Jul 2026 · 10 likes Endotoxin testing is separate: a certificate of purity says nothing about endotoxin. A chemically pure preparation can carry a clinically significant endotoxin load. If…
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Revisiting: Protein density versus volume when you cannot eat much Replied, post #40 · Nutrition & Training › Protein & intake · 7 Jul 2026 · 0 likes Where somebody reports losing strength, intake and training stimulus are the first two things to look at rather than the compound.
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Prescription portability between countries Replied, post #88 · Access › International · 5 Jul 2026 · 32 likes This follows post #85 rather than contradicting it. The question underneath prescription portability between countries is usually "how would I tell?" rather than "what…
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Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #90 · Data & Tools › Datasets · 3 Jul 2026 · 1 like Units in the column header, always, and the same units down the whole column. Mixed units in one field is the commonest defect in shared spreadsheets here.