Vial filling and stoppering: difference between revisions
Diff·revision 19 → 20·09:19, 9 Oct 2025
Difference between revision 19 and revision 20 of Vial filling and stoppering. 2 lines changed; the page grew by 276 bytes.
| Revision 19 — 05:54, 15 Sep 2025 NurseNoteNessa (talk) split §Cold chain from §Storage after receipt 4,557 bytes ±0 | Revision 20 — 09:19, 9 Oct 2025 PrepHPLC_Pia (talk) give the closure integrity test by name 4,833 bytes +276 | ||
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| 40 | Headspace composition affects oxidative degradation. A vial stoppered under nitrogen exposes its contents to far less oxygen than one stoppered under air, which matters for sequences containing methionine. See [[Methionine oxidation]]. | 40 | Headspace composition affects oxidative degradation. A vial stoppered under nitrogen exposes its contents to far less oxygen than one stoppered under air, which matters for sequences containing methionine. See [[Methionine oxidation]]. |
| 41 | 41 | ||
| + | 42 | Whether a given product is stoppered under vacuum, under nitrogen, or under air is rarely stated in research-chemical documentation, and the inference from an audible vent is limited: it indicates a vacuum was present and held, not what gas made up the balance.{{r|usp1503}} | |
| + | 43 | ||
| 42 | == References == | 44 | == References == |
| 43 | {{reflist}} | 45 | {{reflist}} |