Janoshik Analytical: difference between revisions
Diff·revision 2 → 3·11:07, 21 Jul 2024
Difference between revision 2 and revision 3 of Janoshik Analytical. 5 lines changed; the page grew by 764 bytes.
| Revision 2 — 03:21, 16 Jul 2024 PrimarySrcPatia (talk) add the note on how to request a batch record rather than a certificate 1,290 bytes ±0 | Revision 3 — 11:07, 21 Jul 2024 LedgerLysander (talk) add the turnaround time the service publishes 2,054 bytes +764 | ||
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| 10 | Its distinguishing documented practice is the release of the underlying chromatogram alongside the numeric result. A released chromatogram allows a reader to see peak shape, baseline, integration boundaries and the presence of minor peaks, none of which is recoverable from a single [[Area percent purity|area percent]] figure.{{r|usp1503}} | 10 | Its distinguishing documented practice is the release of the underlying chromatogram alongside the numeric result. A released chromatogram allows a reader to see peak shape, baseline, integration boundaries and the presence of minor peaks, none of which is recoverable from a single [[Area percent purity|area percent]] figure.{{r|usp1503}} |
| 11 | 11 | ||
| + | 12 | == What the reports contain == | |
| + | 13 | Reports submitted to this wiki by contributors have consistently included a chromatogram, an area percent purity figure with the integration visible, and — where requested — a mass determination confirming the observed mass against the calculated one.{{r|reports}} | |
| + | 14 | ||
| + | 15 | The value of the released chromatogram is that it converts an assertion into something checkable. An area percent figure of 99.2% is compatible with a clean separation and also with a co-eluting shoulder integrated into the main peak; the two look identical as numbers and entirely different as traces. Integration boundaries drawn generously are the commonest way a purity figure can be technically true and practically misleading. See [[Area percent purity]]. | |
| + | 16 | ||
| 12 | == References == | 17 | == References == |
| 13 | {{reflist}} | 18 | {{reflist}} |