AssayIndex
Annotator

osmolality_chk

Osmolality as an orthogonal check on total dissolved solids.

first seen 2025-Q30 records submitted17 annotations
Section 1

Contribution

Comments technically on records submitted by others. Annotations are signed and are not moderated for agreement.

Records submitted 0 n=0
Annotations 17 n=17
Median purity submitted suppressed n=0 n<3 — see individual records
Suppliers covered 0 n=0

This handle has submitted no records. Annotators comment on other people's submissions and are not required to submit.

Section 2

Annotations

Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.

AX-2026-042465
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.
AX-2026-043110
Same conclusion here, from a different lot.
AX-2025-018532
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.
AX-2025-018989
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.

Showing 7 distinct comments of 17 annotations by this handle.