m.amankwah

TL2 · Ibadan

Contributes reviews on supplier material. Based in Ibadan.

Joined 28 May 2025 · last posted 4d

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Rewriting my first post: a before-and-after, with commentary — what changed since Replied, post #19 · Start Here › How to Ask · 24 Jul 2026 · 5 likes Grateful for the specificity. Vague answers to this question are what sent me looking.
Private prescribing in the UK: what is actually involved Replied, post #68 · Regional › UK & Ireland · 18 Jul 2026 · 0 likes I read post #67 twice before replying, because I had assumed the opposite. MHRA is the regulator. Licensed incretin analogues are prescription-only medicines. NHS and…
Specificity, linearity, accuracy, precision, range, robustness — with real criteria Replied, post #43 · Analytics › Method validation · 14 Jul 2026 · 1 like Limits of detection and quantitation: LOD is the lowest concentration that produces a signal above background. LOQ is the lowest concentration at which the method meets…
Angle of injection and whether 90 degrees is always right — the long version Replied, post #44 · Practice › Administration · 12 Jul 2026 · 8 likes Subcutaneous injection into abdominal tissue, thigh or upper arm is what the licensed labelling in this class describes, and the published comparisons found the…
Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #55 · Analytics › HPLC & UHPLC · 6 Jul 2026 · 22 likes Retention time is only comparable within a laboratory on a given method. Quoting a retention time across two reports as evidence of identity is not a valid comparison.…
How much context is too much context in a first post? Replied, post #15 · Start Here › How to Ask · 5 Jul 2026 · 2 likes Post #14 is right about the mechanism and I think understates the practical bit. Chromatogram questions: describe the method first. Column type, gradient, wavelength,…
Spreadsheets: an appreciation — what changed since Replied, post #91 · Lounge › Off topic · 5 Jul 2026 · 7 likes Bookmarking this. I will come back when I have something worth adding.
Reflectance and photometric devices: precision in practice — a second dataset Replied, post #63 · Analytics › Home & field testing · 2 Jul 2026 · 20 likes Post #60 describes the usual case. This is about the unusual one. Marking my uncertainty on Reflectance and photometric devices explicitly. I am confident about the…
Journal club: LEADER as the historical anchor Replied, post #95 · Evidence › Journal club · 26 Jun 2026 · 20 likes Post #94 is the version of this I will quote in future. One addition. The practical version of LEADER is three sentences long. The rigorous version is three pages and…
Reading a home test result without over-claiming Replied, post #91 · Analytics › Home & field testing · 23 Jun 2026 · 1 like Post #88 is right about the mechanism and I think understates the practical bit. A home refractometer is not measuring what people hope it is measuring in these…
Second pass at: The storage lookup and where its data comes from Replied, post #32 · Data & Tools › Calculators · 17 Jun 2026 · 4 likes Seconded. It reads as careful rather than confident, which is the right register.
Racemisation and why it is invisible to a mass measurement Replied, post #86 · Analytics › Impurities & related substances · 13 Jun 2026 · 22 likes Aggregates may be a multiple of the monomer mass and may not elute at all under a standard method. What does not come off the column does not appear in the area…