Headspace oxygen
Oxygen in the gas space above the product. Correlates with sulfoxide content and is essentially never measured.
Related terms
- Oxidation
- Addition of oxygen. Methionine to sulfoxide (+15.995) then sulfone (+31.990); tryptophan to oxindole and beyond; cysteine to sulfonic acid.
- Closure integrity
- Whether the stopper and crimp maintain the container's seal and vacuum. A failure lets in moisture and oxygen.
see also Sulfoxide · Oxidation ladder
see also Cake shrinkage · Headspace oxygen
Where this term appears
The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.
- Assay report records — the term appears in result tables, peak tables and provenance blocks
- Method references — where the measurement behind the term is defined
- All 5 glossary terms beginning with H