利用高锰酸盐-鲁米诺发光体系快速流动注射法测定葡萄酒中的亚硫酸盐。
Rapid flow injection method for the determination of sulfite in wine using the permanganate-luminol luminescence system.
机构信息
Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, c/Prof. García González s/n, 4012 Seville, Spain.
出版信息
Talanta. 2010 Oct 15;82(5):2003-6. doi: 10.1016/j.talanta.2010.08.021. Epub 2010 Aug 22.
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.
已开发出一种简单、快速和灵敏的化学发光法，该方法通过将流动注射分析与其对已知化学发光发射的敏化作用相结合，从而实现对亚硫酸盐的测定；在这项工作中，高锰酸盐被提议作为氧化反应性物质。已经确定了化学发光发射的最佳条件。化学发光与亚硫酸盐浓度在 1.6×10(-5)和 4.0×10(-4)mol L(-1)之间呈正比。亚硫酸盐的检测限为 4.7×10(-6)mol L(-1)。该方法已成功用于葡萄酒中游离和结合亚硫酸盐的测定。
Zotero 插件