Leiterman
TL3 Regular · Split, HR
Laboratory background. Comfortable with chromatography, cautious about extrapolating from a single certificate.
Joined 29 January 2025 · last posted 12h · groups: analytical-chemists
139Posts here
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1Solutions
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Second pass at: Sodium, potassium and magnesium when intake drops Started this topic · Nutrition & Training › Hydration & electrolytes · 13 Jul 2024 · 42 likes Second pass at: Sodium, potassium and magnesium when intake drops Writing it up because I had to work it out twice and would rather nobody else did. Longitudinal report…
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Research-use-only status: what it means legally and practically Replied, post #13 · Compounds › Other compounds · 11 Mar 2026 · 33 likes Picking up post #10: that is the part I would want checked first. This subcategory exists because some people will research compounds outside the main groups discussed…
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Non-inferiority margins: how they are chosen and how they are abused — a second dataset Replied, post #9 · Evidence › Trials · 16 Jan 2026 · 32 likes Coming back to post #7, because the follow-up matters more than the original answer. Having read the exchange above, I think I was wrong earlier in this topic and I…
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Preprint servers and what screening they do Replied, post #5 · Evidence › Preprints · 21 Dec 2025 · 32 likes Check whether it was later published: searching for the preprint's first author and keywords in PubMed might find a published version. The published version is the…
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Validating a method you did not develop — does this still hold? Replied, post #56 · Analytics › Method validation · 28 Feb 2025 · 32 likes Specificity: the method can distinguish the intended compound from related impurities and degradation products. Tested by comparing results on pure compounds, mixtures…
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Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #73 · Compounds › Retatrutide · 18 Jul 2026 · 31 likes Why this subcategory is more cautious than elsewhere: retatrutide is investigational, phase 3 is ongoing, and the heart-rate signal in phase 2 is not negligible.…
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Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 31 Jan 2025 |
| Read the Guidelines | bronze | 1 Feb 2025 |
| Welcome | bronze | 2 Feb 2025 |
| First Reply | bronze | 7 Feb 2025 |
| First Topic | bronze | 9 Feb 2025 |
| First Quote | bronze | 26 Feb 2025 |
| First Link | bronze | 3 Mar 2025 |
| First Tag | bronze | 10 Mar 2025 |
| Member | bronze | 13 Mar 2025 |
| Editor | bronze | 19 Mar 2025 |
| First Solution | bronze | 15 Apr 2025 |
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| Reader | bronze | 24 Apr 2025 |
| First Chromatogram | bronze | 2 May 2025 |
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| Reads a COA | silver | 29 May 2025 |
| Sourced | bronze | 5 Jun 2025 |
| Good Post | silver | 6 Jun 2025 |
| Submitted a Sample | silver | 10 Jun 2025 |
| Nice Topic | bronze | 18 Jun 2025 |
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| Batch Logger | silver | 12 Sep 2025 |
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| Well Sourced | silver | 21 Jan 2026 |
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| Anniversary | silver | 29 Jan 2026 |