m.dumitru

TL2 Moderator · Monterrey

Contributes reviews on supplier material. Based in Monterrey.

Joined 14 December 2024 · last posted 6d

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Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #103 · Analytics › Impurities & related substances · 22 Jul 2026 · 14 likes post #102 answers the question as asked. The question underneath it is different. Deletion sequences (incomplete coupling during synthesis): lower in mass by one…
Tracking a shortage from primary sources rather than rumour Replied, post #116 · Access › Shortages · 22 Jul 2026 · 0 likes post #115 answers the question as asked. The question underneath it is different. International supply chains: a shortage in one country does not mean shortage in…
Impurity thresholds: where the common numbers come from Replied, post #8 · Analytics › Impurities & related substances · 18 Jul 2026 · 0 likes I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The distinction being drawn does not survive when you look at…
Request: a per-category review queue Replied, post #97 · Meta › Feature requests · 12 Jul 2026 · 0 likes Duplicate requests: if several people request the same feature, the requests often get merged. Check whether your feature has already been suggested before posting.
How much context is too much context in a first post? Replied, post #32 · Start Here › How to Ask · 7 Jul 2026 · 2 likes What you have already read matters. Saying "I read the maintained page on this and I still have a gap" tells people they do not need to point you at the same resource…
Coming back to: Time to steady state after a dose increase Replied, post #93 · Pharmacology › Pharmacokinetics · 5 Jul 2026 · 6 likes Picking up post #90: that is the part I would want checked first. Accumulation at steady state: with a week-long half-life, steady-state concentration is reached around…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #93 · Evidence › Preprints · 30 Jun 2026 · 0 likes How to cite a preprint: author last name, first initial, et al. Title. Server name [preprint]. Posted date. Doi. Include the server name and note that it is a preprint.
0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #84 · Devices › Syringes & needles · 25 Jun 2026 · 5 likes Picking up post #81: that is the part I would want checked first. Syringe barrel size: common sizes are 0.3 mL, 0.5 mL, and 1.0 mL. Smaller barrels are more legible for…
A structured critique template this community uses — a second dataset Replied, post #14 · Evidence › Study critique · 19 Jun 2026 · 5 likes This follows post #11 rather than contradicting it. Building consensus on which criticisms matter: if everyone agrees that the sample size is small but only you think…
Injecting into an area that has become firm: why not to Replied, post #86 · Practice › Administration · 16 Jun 2026 · 0 likes Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer needle (8 mm and up) reaches subcutaneous tissue easily without a pinch. A…
Reading U-100 graduations, with a conversion table Replied, post #33 · Devices › Syringes & needles · 13 Jun 2026 · 0 likes Coming back to post #31, because the follow-up matters more than the original answer. Reading units correctly: look at the marking from the side, not from above or…
A certificate whose chromatogram axes do not match its stated method — one year on Replied, post #39 · Sourcing › Red flags · 4 Jun 2026 · 22 likes Inconsistency across documents: a certificate stating one purity, a website claiming another, and a supplier's verbal representation claiming a third, all on the same…