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Abstract
A simple method for the determination of nitrite using reverse flow injection analysis is proposed. Safranine-T is quickly diazotised by nitrite and coupled with an excess of this dye. The reverse FIA mode with a single-channel gives maximum sensitivity. The influence of reaction variables and rFIA manifold, the precision and accuracy of the method and the effects of foreign ions are studied. The procedure is applied to the determination of nitrite in waste waters and cured meats.