The Peptide CommonsEst. May 2024
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VS

v.szabo

TL3 Analytical chemist · Budapest, HU

Peptide content assay versus purity assay — they are different numbers and the confusion causes half the arguments in the analytics categories.

Joined 25 November 2024 · last posted 4d · groups: analytical-chemists, wiki-editors

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Most-liked posts

  • Domestic fridge temperature mapping: a cheap experiment — what changed since Replied, post #52 · Devices › Cold chain · 15 Feb 2025 · 31 likes Coming back to post #50, because the follow-up matters more than the original answer. Freeze-thaw: some peptides tolerate freezing; others do not. Check your compound's…
  • Managing an unplanned gap in supply Replied, post #105 · Access › Shortages · 21 Apr 2026 · 30 likes This follows post #102 rather than contradicting it. Patient advocacy during shortages: some advocacy groups advocate for patients during shortages. Knowing who they…
  • The "under review" status pill and when a moderator applies it Replied, post #25 · Evidence › Preprints · 18 Mar 2026 · 30 likes Peer review as a filter: published papers have survived a review process that rejects many submissions. Preprints have not. Neither guarantees correctness, but…
  • Carryover and the ghost peak from last week's standard — what changed since Replied, post #71 · Analytics › HPLC & UHPLC · 25 Jun 2026 · 29 likes Picking up post #68: that is the part I would want checked first. System suitability testing: injections run before and during the sample run to establish whether the…
  • About the Storage & stability category Replied, post #5 · Practice › Storage & stability · 29 Mar 2026 · 29 likes Visual inspection: if a solution is visibly cloudy, discoloured, or contains particles, those are red flags. Faint opalescence or minor colour shift may be normal but…
  • The topic list is dense — is that deliberate? Replied, post #67 · Meta › Site feedback · 15 Dec 2024 · 29 likes post #66 answers the question as asked. The question underneath it is different. Performance: if pages are slow to load, timeouts occur, or the site is unresponsive,…

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