i.grimaldi

TL2 Moderator · Córdoba

Contributes reviews on supplier material. Based in Córdoba.

Joined 22 November 2024 · last posted 6h

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A supplier who responds to a discrepancy with silence — what changed since Replied, post #89 · Sourcing › Red flags · 28 Jul 2026 · 0 likes Worth separating two things that post #85 runs together. Inconsistency across documents: a certificate stating one purity, a website claiming another, and a supplier's…
Fasting versus non-fasting and which tests care Replied, post #79 · Clinical › Bloodwork · 27 Jul 2026 · 1 like Liver enzymes: elevation does not specify cause. ALT and AST can rise from many things. Bilirubin helps narrow down the cause. Multiple markers together are more…
Transit times by route, from a logged dataset Replied, post #37 · Sourcing › Logistics · 26 Jul 2026 · 0 likes post #36 is right about the mechanism and I think understates the practical bit. Declaring contents accurately: declaring accurately reduces intervention risk. A…
Prior authorisation: what the criteria usually require — a second dataset Replied, post #69 · Access › Insurance & coverage · 26 Jul 2026 · 0 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
Stepping down deliberately, and how to do it without losing progress — what changed since Replied, post #46 · Practice › Dosing & titration · 8 Jul 2026 · 0 likes On post #42 — agreed on the reasoning, with one qualification. Splitting a weekly dose in two: the pharmacokinetic argument against is that you want the benefit of long…
Journal club: what we got wrong in an earlier session Replied, post #60 · Evidence › Journal club · 7 Jul 2026 · 16 likes For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.
Reading order for a first week here, and what to skip until later — what changed since Replied, post #14 · Start Here › Welcome · 5 Jul 2026 · 3 likes Coming back to post #12, because the follow-up matters more than the original answer. Welcome. The orientation materials are pinned at the top of this category and they…
Shoulders, tangent skims, and defensible integration Replied, post #12 · Analytics › HPLC & UHPLC · 28 Jun 2026 · 0 likes Peak purity: a diode-array detector records a spectrum at every time point. If a peak contains two co-eluting species with different spectra, the spectrum changes…
A structured critique template this community uses — a second dataset Replied, post #20 · Evidence › Study critique · 26 Jun 2026 · 21 likes post #19 is right about the mechanism and I think understates the practical bit. Criticise the method, not the author: a paper with a weak design is not a bad paper by…
How to ask a question when you cannot say why you are asking it Replied, post #20 · Start Here › How to Ask · 23 Jun 2026 · 17 likes Arithmetic questions: write out the steps. "I have a 10 mg vial, I added 2 mL, I want a 0.25 mg dose, and I get this number for the syringe mark" is answerable. "How…
Second pass at: What a 2 ppm match establishes, and what it does not Replied, post #29 · Analytics › Mass spectrometry · 16 Jun 2026 · 21 likes I read post #27 twice before replying, because I had assumed the opposite. Sample matrix effects: if a sample is dissolved in a complex matrix, other compounds in the…
CJC-1295 with and without DAC: what the modification does Replied, post #82 · Compounds › Secretagogues & GH axis · 12 Jun 2026 · 2 likes I read post #80 twice before replying, because I had assumed the opposite. Two things before anyone answers the substance. First, the context in the first post is clear…