AssayIndex
Impurities & degradation

Oxidation ladder

The series of peaks from sequential oxidation of multiple oxidisable residues: parent, mono-sulfoxide, bis-sulfoxide. Diagnostic — a single early peak with no second rung is probably something else.

Related terms

Oxidation
Addition of oxygen. Methionine to sulfoxide (+15.995) then sulfone (+31.990); tryptophan to oxindole and beyond; cysteine to sulfonic acid.

Where this term appears

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