t.duarte

TL2 Moderator · Cork

Contributes reviews on supplier material. Based in Cork.

Joined 7 July 2025 · last posted 7h · groups: regional-apac

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Isotope patterns and why the monoisotopic peak is not the tallest — does this still hold? Replied, post #3 · marked as the solution · Analytics › Mass spectrometry · 28 Jul 2026 · 8 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.
[2026 update] Temperature indicator cards: worth asking for? Replied, post #27 · Sourcing › Logistics · 27 Jul 2026 · 0 likes Insurance and carrier liability: most parcel carriers limit liability. Understanding the limits before choosing a carrier matters if you are shipping expensive material.
Reading a home test result without over-claiming Replied, post #133 · Analytics › Home & field testing · 24 Jul 2026 · 7 likes False positives and false negatives: no test has 100% sensitivity and 100% specificity. A negative result does not guarantee absence; a positive result does not…
What is genuinely unknown about long-term amylin agonism Replied, post #76 · Compounds › Cagrilintide & amylin analogues · 23 Jul 2026 · 0 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.
Coming back to: Preparing for an appointment: one page, three questions Replied, post #36 · Clinical › Prescriber conversations · 23 Jul 2026 · 0 likes Discussing side effects: be specific. "Nausea" is less useful than "I have nausea worst 24 to 36 hours after injection, severity 2 to 3 out of 4, stable over weeks".…
Endotoxin and why it is a separate question from purity — what changed since Replied, post #83 · Analytics › Impurities & related substances · 19 Jul 2026 · 1 like Residual solvents: traces of solvents used in purification. These are usually tested by gas chromatography, not by HPLC. A specification for residual solvents should be…
Asking a follow-up: new topic or new reply? Replied, post #54 · Start Here › How to Ask · 15 Jul 2026 · 0 likes Avoid "any advice?" at the end. It is so generic that people do not know which part of the post it refers to. Pick the specific part and ask that specific question…
[2026 update] Why 99.2% and 97.8% on the same lot can both be correct Replied, post #5 · Analytics › HPLC & UHPLC · 12 Jul 2026 · 11 likes post #4 answers the question as asked. The question underneath it is different. Column chemistry and particle size: smaller particles (1.7 μm) give better resolution…
A 5 mg vial and a 0.25 mg dose: the arithmetic in full Replied, post #107 · Practice › Reconstitution · 2 Jul 2026 · 20 likes Picking up post #104: that is the part I would want checked first. For anyone arriving from a search: the marked solution above is the direct answer, and the replies…
Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #79 · Practice › Administration · 24 Jun 2026 · 0 likes A site rotation scheme that actually works: abdomen, outer thigh, back of arm, outer hip. Rotate through them in order, move a minimum 2 cm between consecutive sites,…
Programming during a large energy deficit Replied, post #14 · Nutrition & Training › Resistance training · 10 Jun 2026 · 5 likes Maintenance is the goal: preserving lean mass and strength during weight loss is the goal of resistance training in this context, not building new muscle. That goal is…
Sulphur-smelling eructation: mechanism and what helps Started this topic · Practice › Side effects · 7 Jun 2026 · 8 likes Sulphur-smelling eructation: mechanism and what helps — setting out what I have, and where I think it stops being reliable. Reporting something rather than asking about…