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  • Title: Rapid flow injection method for the determination of sulfite in wine using the permanganate-luminol luminescence system.
    Author: Navarrro MV, Payán MR, López MA, Fernández-Torres R, Mochón MC.
    Journal: Talanta; 2010 Oct 15; 82(5):2003-6. PubMed ID: 20875609.
    Abstract:
    A simple, rapid and sensitive chemiluminescence method for the determination of sulfite has been developed by combining flow-injection analysis and its sensitizing effect on the known chemiluminescence emission produced by the oxidation of luminol in alkaline medium; in this work permanganate has been proposed as oxidizing reactive. The optimum conditions for the chemiluminescence emission were established. The chemiluminescence was proportional to the sulfite concentration over the range 1.6 × 10(-5) and 4.0 × 10(-4)mol L(-1). The detection limit was 4.7 × 10(-6)mol L(-1) of sulfite. The method has been satisfactorily used for the determination of free and bound sulfite in wines.
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