Liquid chromatography-mass spectrometry: difference between revisions
Diff·revision 18 → 19·06:36, 30 Sep 2025
Difference between revision 18 and revision 19 of Liquid chromatography-mass spectrometry. 2 lines changed; the page grew by 187 bytes.
| Revision 18 — 04:09, 28 Aug 2025 EndotoxinEd (talk) clarify that mass spectrometry confirms identity, not purity 4,276 bytes ±0 | Revision 19 — 06:36, 30 Sep 2025 AAA_Analyst (talk) state the mass accuracy in parts per million rather than daltons 4,463 bytes +187 | ||
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| 33 | Resolution determines what could have been distinguished: a 0.984 Da [[Deamidation|deamidation]] shift is invisible on a unit-resolution instrument, while a 16 Da oxidation is not. A report omitting the instrument omits the answer to what it could have seen.{{r|usp1503}} | 33 | Resolution determines what could have been distinguished: a 0.984 Da [[Deamidation|deamidation]] shift is invisible on a unit-resolution instrument, while a 16 Da oxidation is not. A report omitting the instrument omits the answer to what it could have seen.{{r|usp1503}} |
| 34 | 34 | ||
| + | 35 | As with every determination discussed on this wiki, these are observations about which fields make a result checkable rather than assessments of any laboratory or supplier.{{r|reports}} | |
| + | 36 | ||
| 35 | == References == | 37 | == References == |
| 36 | {{reflist}} | 38 | {{reflist}} |