AssayIndex
Content & mass

Quantitative NMR (qNMR)

Absolute quantification by NMR against an internal standard of certified purity. Method-independent and rarely used in this market.

Related terms

Assay
Quantification of an analyte against a material of known content. Distinct from area percent, which compares peaks within one chromatogram.
Reference standard
A material of known content used to quantify an analyte. Absent for most research peptides, which is why content is rarely measured.

Where this term appears

The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.