AN54 Determination of Sulfite in Food and Beverages by Ion Exclusion Chromatography with Pulsed Amperometric Detection

INTRODUCTION
Sulfite is a widely used food preservative and whiten-
ing agent that received GRAS (generally recognized as
safe) status from 1959 until 1986. In 1986, the U.S. Food
and Drug Administration (FDA) revoked GRAS status
when adverse reactions in sulfite-sensitive individuals
were reported. Since then, the FDA has required warning
labels on any food containing more than 10 mg/kg of
sulfite
or beverage containing more than 10 mg/L. Six
sulfiting agents are currently approved by the FDA for use
as food additives: sulfur dioxide, sodium sulfite, sodium
and potassium bisulfite, and sodium and potassium
metabisulfite. 赛默飞戴安ICS-2100离子色谱系统