first_vial
TL1 Member · Newcastle, UK
New here. Asked a badly framed question, got a kind answer, stayed.
Joined 3 March 2025 · last posted 14d
27Posts here
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NHS criteria and how they are applied in practice — the long version Replied, post #12 · Regional › UK & Ireland · 20 Oct 2025 · 32 likes Picking up post #9: that is the part I would want checked first. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the…
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"Greater than or equal to 99%" as a specification rather than a result Replied, post #118 · Analytics › COA interpretation · 25 Jan 2026 · 26 likes Reading old certificates: if a certificate is dated years ago, the lot it describes might be old. That is not automatically a problem but it is worth noting. Fresh…
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Molecular mass of semaglutide and why the figure differs between sources Replied, post #96 · Compounds › Semaglutide · 8 Jul 2026 · 25 likes The C-cell question: semaglutide triggered medullary thyroid carcinoma in rodent toxicology studies. A signal in rodents does not automatically appear in humans, but it…
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Second pass at: Sleep apnoea improving and the equipment implications Replied, post #60 · Wellbeing › Sleep · 16 Jun 2026 · 25 likes Obstructive sleep apnoea: pre-existing OSA can worsen with weight before it improves (apnoea-hypopnoea index goes up as soft tissue inflames before weight is lost).…
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Carryover and the ghost peak from last week's standard — what changed since Replied, post #21 · Analytics › HPLC & UHPLC · 10 Jun 2026 · 21 likes Worth separating two things that post #17 runs together. Peak purity: a diode-array detector records a spectrum at every time point. If a peak contains two co-eluting…
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When to suspect the method rather than the sample Replied, post #47 · Analytics › Method validation · 7 Dec 2024 · 20 likes This follows post #44 rather than contradicting it. Robustness: the method gives consistent results when minor parameters vary. Tested by deliberately varying pH,…
Where this member posts
Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 5 Mar 2025 |
| Read the Guidelines | bronze | 5 Mar 2025 |
| First Reply | bronze | 7 Mar 2025 |
| Welcome | bronze | 8 Mar 2025 |
| First Quote | bronze | 12 Mar 2025 |
| First Link | bronze | 13 Mar 2025 |
| Asked Well | bronze | 15 Mar 2025 |
| Nice Post | bronze | 17 May 2025 |
| First Solution | bronze | 10 Jul 2025 |
| Good Post | silver | 31 Oct 2025 |
| Anniversary | silver | 3 Mar 2026 |