me.eriksen

TL2 · Faro

Contributes reviews on supplier material. Based in Faro.

Joined 15 April 2025 · last posted 1d

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[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #128 · Sourcing › Independent verification · 27 Jul 2026 · 0 likes Combining a chromatographic result with a documentation review gives a more complete picture than two chromatographic results, because the failure modes are different.…
Follow-up: How compounding permissions changed when supply normalised Replied, post #68 · Sourcing › Regulatory · 25 Jul 2026 · 28 likes Where a claim about legality is made here, the useful follow-up is which instrument it rests on. Most such claims turn out to rest on a forum post. A qualification I…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #99 · Sourcing › Independent verification · 17 Jul 2026 · 0 likes Post #95 put the caveat in the right place and I want to underline it. Asking the supplier before publishing a discrepancy is the convention here. Most discrepancies…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #41 · Evidence › Journal club · 9 Jul 2026 · 2 likes Agreed on SUSTAIN 6, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not, and the…
Does a peptide degrade silently, with no visual change? Replied, post #60 · Practice › Storage & stability · 1 Jul 2026 · 0 likes Answering the question post #56 raises rather than the one it answers. Clarity is a weak test. A solution can lose a significant fraction of its active content to…
Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #65 · Analytics › Method validation · 24 Jun 2026 · 13 likes Range: the concentration range over which the method has been validated. Going outside the validated range is going outside the method's demonstrated performance.
Follow-up: Search filters: what is missing Replied, post #128 · Meta › Site feedback · 13 Jun 2026 · 3 likes What I want from this Search filters 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.
How shortages have affected compounding permissions — does this still hold? Replied, post #11 · Access › Shortages · 9 Jun 2026 · 0 likes Thank you — that answers what I came here to find out.
Follow-up: The most useful thing you learned here that was not the answer you came for Replied, post #3 · Lounge › Off topic · 5 Jun 2026 · 3 likes Lounge-level thought to close on: the measure of this place is that being wrong in public here is cheap. That is a design decision and it took work. Genuinely open to…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #28 · Practice › Storage & stability · 3 Jun 2026 · 1 like I read post #24 twice before replying, because I had assumed the opposite. Agreed on reconstituted, with one qualification that I think matters. The reasoning holds for…
A certificate whose chromatogram axes do not match its stated method — one year on Replied, post #6 · Sourcing › Red flags · 2 Jun 2026 · 11 likes Taking post #5 at face value and following it one step further. Reporting something here requires the batch, the date, the method and the document, which is exactly…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #75 · Sourcing › Vendor reports · 30 May 2026 · 31 likes Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are…