Temperature excursion: difference between revisions
Diff·revision 53 → 54·04:31, 12 Jan 2026
Difference between revision 53 and revision 54 of Temperature excursion. 2 lines changed; the page grew by 670 bytes.
| Revision 53 — 11:22, 5 Jan 2026 CategoryBot (talk) bot: normalise citation format 22,977 bytes +858 | Revision 54 — 04:31, 12 Jan 2026 CrudePeptidePearl (talk) expand §Degradation kinetics 23,647 bytes +670 | ||
|---|---|---|---|
| 145 | Inference from chemistry supports statements of the form that a dry lyophilised peptide sealed in a vial is expected to tolerate transient warming far better than the same peptide in aqueous solution. That is a well-supported general proposition. It does not support a statement about a particular parcel, because the parameters that determine the outcome — the glass transition temperature of that formulation, the moisture content, the integrity of the closure, the actual exposure — are all unmeasured.{{r|ich_q1a,ppexcursion}} | 145 | Inference from chemistry supports statements of the form that a dry lyophilised peptide sealed in a vial is expected to tolerate transient warming far better than the same peptide in aqueous solution. That is a well-supported general proposition. It does not support a statement about a particular parcel, because the parameters that determine the outcome — the glass transition temperature of that formulation, the moisture content, the integrity of the closure, the actual exposure — are all unmeasured.{{r|ich_q1a,ppexcursion}} |
| 146 | 146 | ||
| + | 147 | Recipient observation is weaker than it appears. Community reports that material used after warm transit produced no noticeable difference in effect suffer from a specific set of defects: no pre-exposure analytical baseline, so any deficit cannot be attributed to transit; no measurement of the exposure, so the reported condition is a guess; no blinding, and a subjective endpoint; and survivorship, since material that was visibly ruined is discarded rather than reported. The absence of a noticed difference is also a low-sensitivity endpoint — a 15% loss of active peptide is unlikely to be perceptible and would be a serious analytical finding.{{r|ppexcursion}} | |
| + | 148 | ||
| 147 | == References == | 149 | == References == |
| 148 | {{reflist}} | 150 | {{reflist}} |