j.teixeira
TL2 Moderator · Faro
Contributes reviews on supplier material. Based in Faro.
Joined 2 July 2025 · last posted 14d
73Posts here
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Second pass at: What a reversed-phase purity number actually is Started this topic · Analytics › HPLC & UHPLC · 25 Jan 2025 · 53 likes On the subject in the title: Second pass at: What a reversed-phase purity number actually is Working notes rather than a conclusion. I would like to understand what…
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Stability of BPC-157 in solution: what has been measured — one year on Replied, post #69 · Compounds › Repair & healing peptides · 9 Jun 2026 · 32 likes post #68 answers the question as asked. The question underneath it is different. Stability of BPC-157 in solution: what has been measured in published work covers…
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Official shortage notices and what they authorise Replied, post #56 · Access › Shortages · 18 May 2026 · 31 likes Picking up post #53: that is the part I would want checked first. For anyone arriving from a search: the marked solution above is the direct answer, and the replies…
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[2026 update] A single out-of-range value on an otherwise normal panel Replied, post #3 · Clinical › Bloodwork · 29 Jul 2025 · 30 likes Lipid panel interpretation: total, LDL, HDL, triglycerides all on one panel. Reading them together is more informative than reading one value in isolation. An elevated…
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The anatomy of a question that gets answered within an hour — the long version Replied, post #118 · Start Here › How to Ask · 20 Nov 2025 · 29 likes post #117 is right about the mechanism and I think understates the practical bit. The specific question in the title is more useful than you might think. A title like…
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Mass error in ppm: the arithmetic and the caveat Replied, post #26 · Analytics › Mass spectrometry · 12 Feb 2026 · 27 likes post #25 answers the question as asked. The question underneath it is different. Sample matrix effects: if a sample is dissolved in a complex matrix, other compounds in…
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