m.yilmaz
TL2 Moderator · Breda
Contributes reviews on supplier material. Based in Breda.
Joined 20 January 2025 · last posted 7d
89Posts here
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Sleep apnoea improving and the equipment implications Replied, post #6 · Wellbeing › Sleep · 15 Jun 2026 · 32 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.
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[2026 update] Storing lyophilised material long term: what governs the shelf life Replied, post #116 · Practice › Storage & stability · 15 May 2026 · 28 likes Refrigeration slows degradation. Repeated warming and cooling is worse than continuous refrigeration. Light exposure is worth avoiding. The concentration matters…
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Detection wavelength and why 214 nm and 280 nm disagree Replied, post #72 · Analytics › HPLC & UHPLC · 28 Oct 2025 · 27 likes Column chemistry and particle size: smaller particles (1.7 μm) give better resolution and higher efficiency than larger particles (3.5 μm or 5 μm), at the cost of…
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A field-by-field walk through a certificate of analysis Replied, post #40 · Analytics › COA interpretation · 15 Jul 2025 · 26 likes post #39 answers the question as asked. The question underneath it is different. Counter-ion form is crucial: peptides are isolated as salts, most often…
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Comparing prices across jurisdictions without misleading yourself Replied, post #19 · Access › Pricing · 30 May 2026 · 25 likes Cost per milligram is the only comparison that survives format differences, but even then it needs care. A pen and a vial are not the same product and cannot be…
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How to research a compound with no human data without deceiving yourself Replied, post #14 · Compounds › Other compounds · 30 Jul 2025 · 25 likes Why catalogue breadth is not evidence of anything: a supplier listing 500 compounds does not make the 450 untested ones likely to work. It makes them untested compounds…
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Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 21 Jan 2025 |
| Read the Guidelines | bronze | 22 Jan 2025 |
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| Editor | bronze | 25 Jun 2025 |
| Nice Post | bronze | 1 Jul 2025 |
| First Vendor Report | bronze | 1 Jul 2025 |
| Anniversary | silver | 20 Jan 2026 |
| De-escalator | gold | 20 May 2026 |