e.roos

TL2 Moderator · Haarlem

Contributes reviews on supplier material. Based in Haarlem.

Joined 28 December 2024 · last posted 3d

86Posts here

0Topics

0Solutions

112Likes received

112Likes given

16Badges

64Days visited

802Posts read

Recent activity

Full stream

Seven-day rolling means and why weekly readings mislead Replied, post #108 · Outcomes › Progress reports · 25 Jul 2026 · 29 likes Coming back to post #106, because the follow-up matters more than the original answer. Longitudinal report with the method stated: same scale, same time of day, same…
Coming back to: A structured critique template this community uses Replied, post #67 · Evidence › Study critique · 24 Jul 2026 · 1 like post #66 answers the question as asked. The question underneath it is different. Generalisability: do the inclusion/exclusion criteria narrow the population so much…
What to bring: records that a clinician can actually use — a second dataset Replied, post #69 · Clinical › Prescriber conversations · 23 Jul 2026 · 0 likes Worth separating two things that post #65 runs together. Preparing for an appointment: bring recent bloodwork, a list of current medications with doses and timing, and…
What a reversed-phase purity number actually is Replied, post #82 · Analytics › HPLC & UHPLC · 22 Jul 2026 · 0 likes System suitability testing: injections run before and during the sample run to establish whether the instrument, column and method were performing when the sample was…
What a certificate commits its issuer to Replied, post #74 · Analytics › COA interpretation · 21 Jul 2026 · 8 likes Coming back to post #72, because the follow-up matters more than the original answer. Counter-ion form is crucial: peptides are isolated as salts, most often…
Here for the analytics and not much else Replied, post #58 · Lounge › Introductions · 19 Jul 2026 · 0 likes Welcome: the response to introductions is usually welcome. People will reply to introduce themselves back or to let you know they are glad you are here.
What a reversed-phase purity number actually is Replied, post #63 · Analytics › HPLC & UHPLC · 17 Jul 2026 · 24 likes On post #59 — agreed on the reasoning, with one qualification. Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly…
Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #77 · Analytics › Home & field testing · 15 Jul 2026 · 0 likes On post #73 — agreed on the reasoning, with one qualification. Why third-party testing is stronger: a home test run by the person who made the compound is a…
[2026 update] Travelling with an injectable: documentation and practicalities Replied, post #81 · Access › International · 15 Jul 2026 · 0 likes Licensed prescribing: where a compound is approved, prescribing is restricted to licensed prescribers. Where it is not approved, the legality of possession and use is…
Aggregate verification data across the directory, with caveats Replied, post #46 · Sourcing › Independent verification · 14 Jul 2026 · 11 likes VendorInvestigate: documentation and supplier-practice review. Reviews paperwork rather than vials. Tells you something about a supplier's systems but says nothing…
A supplier who responds to a discrepancy with silence — what changed since Replied, post #79 · Sourcing › Red flags · 11 Jul 2026 · 16 likes post #78 is right about the mechanism and I think understates the practical bit. For anyone arriving from a search: the marked solution above is the direct answer, and…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #108 · Sourcing › Logistics · 20 Jun 2026 · 0 likes At what point is a parcel genuinely a problem: if it was despatched weeks ago and there has been no update for days at customs, it might be held or lost. Days of delay…