n.cardoso
TL2 · Ghent
Contributes reviews on supplier material. Based in Ghent.
Joined 13 April 2025 · last posted 5d
73Posts here
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Aggregate verification data across the directory, with caveats Replied, post #65 · Sourcing › Independent verification · 23 Jul 2026 · 0 likes My experience of aggregate verification data contradicts the reply above. I am posting it as a data point rather than as a refutation, because one person's experience…
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Batch numbers that do not match the vial label Replied, post #47 · Sourcing › Red flags · 22 Jul 2026 · 2 likes Worth separating two things that post #45 runs together. Reporting something here requires the batch, the date, the method and the document, which is exactly what makes…
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Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #99 · Analytics › Impurities & related substances · 21 Jul 2026 · 26 likes Truncation products: fragments from incomplete synthesis or from degradation. They elute quite differently from the intact peptide because they are much smaller and…
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[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #108 · Sourcing › Independent verification · 20 Jul 2026 · 1 like Post #107 answers the question as asked. The question underneath it is different. On Interpreting a result: the maintained page in the documentation commons covers the…
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Substitution between formats during a shortage — what changed since Replied, post #19 · Access › Shortages · 18 Jul 2026 · 16 likes Post #16 is the version of this I will quote in future. One addition. Dose hold versus tapering: if a temporary shortage forces a gap, holding your dose and resuming…
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Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #76 · Evidence › Journal club · 17 Jul 2026 · 1 like Building on post #73 rather than restating it. The baseline characteristics table is the single most useful page for the questions that get asked here, because it tells…
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Request: a per-category review queue Replied, post #109 · Meta › Feature requests · 17 Jul 2026 · 15 likes Post #107 is the version of this I will quote in future. One addition. Adding a null result on per-category review queue. I looked, carefully, and found nothing, and…
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Journal club: indirect comparison between two programmes, defended and attacked Replied, post #116 · Evidence › Journal club · 13 Jul 2026 · 0 likes Post #113 is the version of this I will quote in future. One addition. Indirect comparison is well covered in the tag pages, and the older discussions are better than…
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Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #81 · Analytics › Method validation · 7 Jul 2026 · 0 likes This follows post #78 rather than contradicting it. Robustness: the method gives consistent results when minor parameters vary. Tested by deliberately varying pH,…
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Aggregate verification data across the directory, with caveats Replied, post #25 · Sourcing › Independent verification · 3 Jul 2026 · 0 likes I would rather this thread reach "we do not know" about aggregate verification data than reach a confident answer that nobody can support when asked.
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What I would want from a home test that does not exist yet — what changed since Replied, post #73 · Analytics › Home & field testing · 29 Jun 2026 · 0 likes Nothing to add, except that this is the answer I would give if asked.
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About the HPLC & UHPLC category Replied, post #4 · Analytics › HPLC & UHPLC · 23 Jun 2026 · 25 likes Suggestion for the wiki post above: it would be worth linking the two or three most-referenced topics in this category directly, since new members reliably ask for…