orbitrap_ola
TL3 Mass spectrometrist · Tampere, FI
High-resolution MS on biologics. Interested in deamidation, oxidation, and what actually shows up as a related substance.
Joined 24 December 2024 · last posted 14h · groups: analytical-chemists, newcomer-guides
136Posts here
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Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #81 · Analytics › Impurities & related substances · 16 Jul 2026 · 33 likes Everything in post #77 holds. The case it does not cover is the one I have. Reporting thresholds matter: below a stated threshold, peaks are usually not reported at…
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The anatomy of a question that gets answered within an hour Replied, post #38 · Start Here › How to Ask · 7 May 2026 · 33 likes Post the arithmetic you already did. Half the questions here are answered by someone spotting which line of your working is wrong, and that is impossible if you only…
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Coming back to: An 18-month record including the parts that went badly Replied, post #74 · Outcomes › Progress reports · 2 Jul 2025 · 33 likes Photographs at fixed intervals under fixed conditions are a better record of composition change than the scale, and much harder to standardise.
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Research-use-only labelling: what it means and what it does not — the long version Replied, post #89 · Sourcing › Regulatory · 20 Feb 2025 · 32 likes That is clearer than the version I had in my head. Thank you.
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A revision dispute resolved on the topic rather than in the history — a second dataset Replied, post #29 · Meta › Wiki maintenance · 7 Nov 2024 · 32 likes This follows post #28 rather than contradicting it. Careful with that. A short duplicated paragraph is sometimes better than a link, because the reader who needs it is…
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Orforglipron as a non-peptide: what changes when the molecule is small Replied, post #14 · Compounds › Oral incretins · 28 Aug 2024 · 32 likes This follows post #11 rather than contradicting it. My understanding of orforglipron is a few years old and may have been superseded. If it has been, I would genuinely…
Where this member posts
Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 25 Dec 2024 |
| First Reply | bronze | 27 Dec 2024 |
| Read the Guidelines | bronze | 27 Dec 2024 |
| Welcome | bronze | 2 Jan 2025 |
| First Topic | bronze | 4 Jan 2025 |
| First Quote | bronze | 17 Jan 2025 |
| First Link | bronze | 18 Jan 2025 |
| First Tag | bronze | 20 Jan 2025 |
| Reader | bronze | 20 Jan 2025 |
| Sourced | bronze | 6 Feb 2025 |
| Member | bronze | 13 Feb 2025 |
| First Chromatogram | bronze | 21 Feb 2025 |
| Generous | bronze | 7 Mar 2025 |
| Editor | bronze | 23 Mar 2025 |
| Reads a COA | silver | 13 Apr 2025 |
| First Solution | bronze | 5 May 2025 |
| Well Sourced | silver | 7 Jun 2025 |
| Nice Post | bronze | 8 Jun 2025 |
| Thank You | silver | 22 Jun 2025 |
| Method First | silver | 26 Jun 2025 |
| Changed My Mind | silver | 27 Jun 2025 |
| Regular | silver | 2 Jul 2025 |
| Consistently Generous | silver | 19 Jul 2025 |
| Submitted a Sample | silver | 1 Aug 2025 |
| Good Post | silver | 20 Sep 2025 |
| Wiki Maintainer | gold | 16 Nov 2025 |
| Mass Accuracy | silver | 23 Nov 2025 |
| Anniversary | silver | 24 Dec 2025 |