c.balogun
TL2 · Kochi
Contributes reviews on supplier material. Based in Kochi.
Joined 6 August 2025 · last posted 12d
74Posts here
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Carryover and the ghost peak from last week's standard — what changed since Replied, post #85 · Analytics › HPLC & UHPLC · 29 Jun 2026 · 32 likes Reversed-phase separates on hydrophobicity. A peptide is retained on a non-polar stationary phase and eluted by increasing organic solvent. For peptides the mobile…
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Coming back to: Measurement error in a self-reported exposure Replied, post #26 · Evidence › Study critique · 28 Apr 2026 · 32 likes Picking up post #23: that is the part I would want checked first. Criticism is more useful when it is narrower. "The trial answers a different question from the one…
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How shortages have affected compounding permissions Replied, post #43 · Access › Shortages · 16 Jul 2026 · 30 likes Where I part company with post #39, and it is a narrow parting. Filing a mild objection to the consensus on shortages. Mild because I might be wrong; an objection…
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Reading an MS report that only gives you a single number Replied, post #27 · Analytics › Mass spectrometry · 12 Mar 2025 · 30 likes Desalting before analysis: some samples need desalting to remove salts that suppress the peptide signal. Report whether desalting was used, because it can affect the…
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Time to steady state after a dose increase Replied, post #130 · Pharmacology › Pharmacokinetics · 6 Nov 2024 · 30 likes Adding thanks rather than a view. I do not have a view worth the space.
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Coming back to: When to suspect the method rather than the sample Replied, post #120 · Analytics › Method validation · 23 Dec 2024 · 28 likes Narrowing post #117, because the general version has more than one answer. Validation is compound-specific and matrix-specific. A method validated for one peptide is a…
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