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
5Topics
1Solutions
753Likes received
884Likes given
28Badges
235Days visited
2.4kPosts read
Most-liked posts
-
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. A hydration and…
-
Research-use-only status: what it means legally and practically Replied, post #13 · Compounds › Other compounds · 11 Mar 2026 · 33 likes Picking up post #11: that is the part I would want checked first. Research-use-only status: I have looked for the primary source twice and failed twice. Either it does…
-
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 Everything in post #7 holds. The case it does not cover is the one I have. Absolute and relative effects answer different questions. Write down the event rate in each…
-
Preprint servers and what screening they do Replied, post #5 · Evidence › Preprints · 21 Dec 2025 · 32 likes Always label it as a preprint in any discussion. A preprint is not a published trial and it is not settled knowledge. Use it for hypothesis generation and for…
-
Validating a method you did not develop — does this still hold? Replied, post #56 · Analytics › Method validation · 28 Feb 2025 · 32 likes Robustness testing deliberately varies the parameters most likely to drift — organic percentage, pH, temperature, flow — and shows the result does not. It is the part…
-
Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #73 · Compounds › Retatrutide · 18 Jul 2026 · 31 likes What I want from this retatrutide discussion thread is the list of things that would need to be true for the claim to hold. If we can write that list, we can check it.
Where this member posts
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 |
| Generous | bronze | 15 Apr 2025 |
| Reader | bronze | 24 Apr 2025 |
| First Chromatogram | bronze | 2 May 2025 |
| Method First | silver | 25 May 2025 |
| 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 |
| Nice Post | bronze | 21 Jun 2025 |
| Good Topic | silver | 15 Jul 2025 |
| Thank You | silver | 18 Jul 2025 |
| Batch Logger | silver | 12 Sep 2025 |
| Regular | silver | 20 Sep 2025 |
| Well Sourced | silver | 21 Jan 2026 |
| Mass Accuracy | silver | 23 Jan 2026 |
| Anniversary | silver | 29 Jan 2026 |