Amino acid analysis: difference between revisions
Diff·revision 18 → 19·07:04, 24 Oct 2025
Difference between revision 18 and revision 19 of Amino acid analysis. 2 lines changed; the page grew by 320 bytes.
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| 39 | Its absence is not evidence of a problem. It is a laborious method, and content can also be established by quantitative nitrogen determination or by chromatographic assay against a qualified standard where one exists. | 39 | Its absence is not evidence of a problem. It is a laborious method, and content can also be established by quantitative nitrogen determination or by chromatographic assay against a qualified standard where one exists. |
| 40 | 40 | ||
| + | 41 | For investigational compounds without a reference standard, however, it is one of very few routes to an absolute content figure, and its absence leaves content resting on subtraction of water, counterion and solvent from unity — an arithmetic estimate rather than a measurement. See [[Peptide content]].{{r|usp1052}} | |
| + | 42 | ||
| 41 | == References == | 43 | == References == |
| 42 | {{reflist}} | 44 | {{reflist}} |