s.silva

TL2 · Kochi

Contributes reviews on supplier material. Based in Kochi.

Joined 12 September 2024 · last posted 4d

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What a certificate commits its issuer to Replied, post #92 · Analytics › COA interpretation · 24 Jul 2026 · 0 likes Noted, and I have changed what I was going to do on the strength of it.
Journal club: what we got wrong in an earlier session Replied, post #112 · Evidence › Journal club · 23 Jul 2026 · 1 like Post #108 describes the usual case. This is about the unusual one. Sessions on negative or null results are consistently the most instructive and the hardest to get…
Risk-of-bias tools and the judgement they conceal — does this still hold? Replied, post #27 · Evidence › Meta-analyses · 17 Jul 2026 · 18 likes Bookmarking this. I will come back when I have something worth adding.
Micro-titration: a disputed topic, argued properly — one year on Replied, post #64 · Practice › Dosing & titration · 16 Jul 2026 · 0 likes Concentration and dose get conflated constantly in this subcategory. Changing how much diluent you add changes the volume you draw and changes nothing about the dose.
[2026 update] A report I filed that turned out to be wrong, and the correction Replied, post #19 · Sourcing › Vendor reports · 14 Jul 2026 · 19 likes Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #132 · Sourcing › Logistics · 12 Jul 2026 · 0 likes Picking up post #129: that is the part I would want checked first. Regional warehouse stock versus direct is a good example of a question where the honest answer is…
How much context is too much context in a first post? Replied, post #75 · Start Here › How to Ask · 10 Jul 2026 · 3 likes Post #74 is right about the mechanism and I think understates the practical bit. Chromatogram questions: describe the method first. Column type, gradient, wavelength,…
Insurance and replacement policies, compared Replied, post #76 · Sourcing › Logistics · 9 Jul 2026 · 1 like The arithmetic on insurance and replacement policies is the easy part and it is where the errors are, which is an uncomfortable combination. Show your working and…
Aggregate verification data across the directory, with caveats Replied, post #34 · Sourcing › Independent verification · 8 Jul 2026 · 4 likes My position on aggregate verification data is current rather than settled. I have revised it once already and I expect to again, so treat it accordingly.
Stability of BPC-157 in solution: what has been measured Replied, post #3 · Compounds › Repair & healing peptides · 28 Jun 2026 · 1 like Analytical identity of BPC-157: a 15-residue peptide with an unambiguous mass (≈1419.5 Da). Identity confirmation by LC-MS is trivially easy, which means there is no…
Pooling trials with different estimands Replied, post #52 · Evidence › Meta-analyses · 27 Jun 2026 · 10 likes Marking my place. If it changes for me I will come back and say so.
Coming back to: Reconciling a supplier certificate with an independent result Replied, post #15 · Sourcing › Vendor reports · 17 Jun 2026 · 2 likes Worth separating two things that post #14 runs together. If the supplier was asked about a discrepancy, include what they said verbatim rather than summarised. The…