Concerning the importance of the identification and characterization of food dyes in food science, this work presents a screening method using voltammetry of immobilized microparticles for identification in solid state of sunset yellow, tartrazine yellow, brilliant blue, indigotine, and erythrosine in food matrices. Different aqueous supporting electrolyte were investigated for screening purpose and NaCl 0.1 mol L⁻¹ showed to be suitable for evaluating dyes in solid state. By using square wave voltammetry as detection mode was possible to establish qualitative diagnostic criteria for identification of dyes in commercials powder of food dyes samples using both anodic and cathodic scan. Moreover, based on the solid-state electrochemistry profile and due to the lack of information about the electrochemical behavior of these compounds in solid state, some oxi/reduction pathways could be elucidated, and special attention was given to the case of sunset yellow dye.

关于在食品科学中鉴定和鉴定食用染料的重要性，这项工作提出了一种使用固定化微粒的伏安法进行筛查的方法，用于食品基料中日落黄，酒石黄，亮蓝，靛蓝和赤藓红的固态鉴定。为筛选目的研究了不同的水性支持电解质和0.1 mol L ^-1的NaCl表明适用于评估固态染料。通过使用方波伏安法作为检测模式，可以建立定性的诊断标准，以使用阳极和阴极扫描来鉴定食用染料样品的商品粉末中的染料。而且，基于固态电化学曲线并且由于缺乏关于这些化合物在固态下的电化学行为的信息，可以阐明一些氧化/还原途径，并且特别注意了日落黄色染料的情况。