Does anybody have suggestions to avoid the oxidation of sulfite to sulfate?
May I refer you to the following reference:
Stabilization of sulfide and sulfite and ion-pair chromatography of mixtures of sulfide, sulfite, sulfate and thiosulfate.
Miura Y, Matsushita Y, Haddad PR.
J Chromatogr A. 2005 Aug 26;1085(1):47-53.
PMID: 16106847 [PubMed - indexed for MEDLINE]
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