Tartrazine and carmoisine are organic azo dyes widely used in food products, drugs, and cosmetics. Therefore, it is important to measure them. In this work, the determination of carmoisine and tartrazine using a modified carbon paste electrode (CPE)/CaMgFeO was developed. The developed sensor exhibited well-defined and separate DPV peaks for carmoisine and tartrazine. The system demonstrated high reproducibility, low detection limits (0.86 μM for carmoisine and 0.53 μM for tartrazine), and linear concentrations ranging from 10 to 900 μM for carmoisine and 0.1–750 μM for tartrazine were successfully attained. The successful detection of carmoisine and tartrazine in wastewater and soft drink samples was the application of the developed CPE/CaMgFeO system. The developed sensor presented a viable method for the simultaneous detection of several food colorants in complex matrices, like those present in environmental and food samples.

中文翻译：

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基于三壳层CaMgFe2O4空心球修饰传感器电传感食品中的胭脂红和柠檬黄

柠檬黄和卡莫红是有机偶氮染料，广泛用于食品、药品和化妆品。因此，测量它们很重要。在这项工作中，开发了使用改性碳糊电极 (CPE)/CaMgFeO 测定卡莫红和柠檬黄的方法。开发的传感器表现出清晰且独立的卡莫红和柠檬黄 DPV 峰。该系统表现出高重现性、低检测限（卡莫红为 0.86 μM，柠檬黄为 0.53 μM），并且成功获得了卡莫红 10 至 900 μM 和柠檬黄 0.1–750 μM 的线性浓度。所开发的CPE/CaMgFeO系统的应用成功检测了废水和软饮料样品中的卡莫红和柠檬黄。开发的传感器提供了一种同时检测复杂基质中多种食品着色剂的可行方法，例如环境和食品样品中存在的着色剂。