Counter-ion contributes to osmolality on reconstitution and peptide barely does. That is an orthogonal route to the same number for anyone without an ion chromatograph.
osmolality_chk
Osmolality as an orthogonal check on total dissolved solids.
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Same conclusion here, from a different lot.
Agreed with the reading above.
Osmolality after reconstitution to a stated volume bounds total solids and gives an independent, crude check on the fill. Ten minutes and no peptide-specific reagents.
Total dissolved solids on reconstitution should reconcile with the balance. Where it does not, the discrepancy is usually an undissolved fraction rather than a measurement error.
Noted. Logged against the batch rollup.
I would read it the same way.
Showing 7 distinct comments of 17 annotations by this handle.