Application Note: Determination of Total and Free Sulfite in Foods and Beverages
11 March 2013

To facilitate regulatory compliance, the food and beverage industries need a simple yet reliable method that offers the required selectivity and sensitivity to monitor low concentrations of sulfites in complex food/beverage matrices. This application note describes an updated method that can be applied to food and beverage samples with lower sulfite concentrations than those previously addressed in the archived application note, AN 54.