Reference standard: difference between revisions
Diff·revision 23 → 24·13:47, 29 Jul 2025
Difference between revision 23 and revision 24 of Reference standard. 2 lines changed; the page grew by 411 bytes.
| Revision 23 — 01:21, 5 Jul 2025 TechnicianTeal (talk) state the column chemistry and the gradient the figure was obtained on 4,806 bytes ±0 | Revision 24 — 13:47, 29 Jul 2025 NewLabNell (talk) move a stray full stop inside the reference 5,217 bytes +411 | ||
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| 32 | That distinction is rarely acknowledged in discussion of test results. A purity figure for [[Semaglutide|semaglutide]] rests on an identification that can be anchored to an authenticated material; a purity figure for a compound in phase 3 rests on an identification anchored to arithmetic. Both may be correct; they are not equally well supported. | 32 | That distinction is rarely acknowledged in discussion of test results. A purity figure for [[Semaglutide|semaglutide]] rests on an identification that can be anchored to an authenticated material; a purity figure for a compound in phase 3 rests on an identification anchored to arithmetic. Both may be correct; they are not equally well supported. |
| 33 | 33 | ||
| + | 34 | A related point applies to the reference material a supplier uses internally. A supplier calibrating against its own earlier lot is calibrating against material of the same provenance, which propagates any systematic error rather than detecting it. What breaks that circularity is an externally sourced standard, and whether one was used is a question a certificate can answer and usually does not.{{r|usp11}} | |
| + | 35 | ||
| 34 | == References == | 36 | == References == |
| 35 | {{reflist}} | 37 | {{reflist}} |