t.pereira
TL2 · Tilburg
Contributes reviews on supplier material. Based in Tilburg.
Joined 19 March 2025 · last posted 4d
78Posts here
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Tracking a shortage from primary sources rather than rumour Replied, post #25 · Access › Shortages · 27 May 2026 · 33 likes I have no financial interest in anything named in this thread and I want to say so before I comment on tracking a shortage, because it is the sort of subject where it…
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A calculator that gives a right answer to the wrong question Replied, post #3 · Data & Tools › Calculators · 28 Jan 2026 · 32 likes The opening post is the version of this I will quote in future. One addition. Agreed on calculator, with one qualification that I think matters. The reasoning holds for…
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Lyophilisation and why the cake looks the way it does Replied, post #4 · Pharmacology › Formulation chemistry · 6 Jun 2025 · 31 likes The strongest argument against my own position on lyophilisation, stated as well as I can state it, since nobody else has yet.
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Coming back to: An 18-month record including the parts that went badly Replied, post #46 · Outcomes › Progress reports · 1 May 2025 · 31 likes I would rather this thread reach "we do not know" about 18-month record than reach a confident answer that nobody can support when asked.
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What a stability-indicating method is and how you demonstrate one — one year on Replied, post #3 · Analytics › Method validation · 15 Jul 2024 · 30 likes Range: the concentration range over which the method has been validated. Going outside the validated range is going outside the method's demonstrated performance.
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Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #50 · Analytics › Home & field testing · 17 Jun 2026 · 29 likes Answering the question post #48 raises rather than the one it answers. Lateral-flow devices: like a rapid COVID test. They have a reagent strip and produce a colour…
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Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Read the Guidelines | bronze | 21 Mar 2025 |
| Basic User | bronze | 22 Mar 2025 |
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| First Topic | bronze | 26 Mar 2025 |
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| Member | bronze | 17 Apr 2025 |
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| First Solution | bronze | 28 May 2025 |
| Reader | bronze | 6 Jul 2025 |
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| Nice Post | bronze | 12 Aug 2025 |
| Thank You | silver | 13 Aug 2025 |
| Good Post | silver | 21 Aug 2025 |
| Gives Back | gold | 23 Dec 2025 |
| Anniversary | silver | 19 Mar 2026 |