Flavonoids have garnered significant interest in the food and pharmaceutical industries due to their notable effects on product quality, functionality, and safety. As a result, there is a pressing need for a simple and efficient detection method for flavonoids in both food and pharmaceutical samples. We opt for a rapid and cost-effective electrochemical detection method to analyze flavonoids in food samples to address this. Herein, we prepared titanium oxide nanoparticles doped with alkali metals synthesized at varying times using a modest hydrothermal method followed by calcination at 700° C. Subsequently, the nanocomposite of titanium oxide nanoparticles with graphite was prepared using the ultra-sonication method. The prepared nanocomposite was implemented in the electrochemical detection of Rutin. Furthermore, the nanocomposite phase purity and elemental distribution have been scrutinized through various structural and morphological characterization methods. Subsequently, the nanocomposite-modified glassy carbon electrode was used in the electrochemical sensing of Rutin. It offers extensive surface area, excellent electron transfer ability, and high conductivity. It also exhibits extraordinary electrochemical performance with high sensitivity, selectivity, accuracy, and nanomolar detection. The practical feasibility of various biological and vegetable samples exemplifies prominent recovery results with the capability to be a promising candidate for point-of-care devices.

中文翻译：

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基于 Li2TiO3-石墨纳米复合材料的电化学传感器：一种用于实际样品中芦丁的时间控制检测方法


黄酮类化合物因其对产品质量、功能和安全性的显着影响而在食品和制药行业引起了极大的兴趣。因此，迫切需要一种简单高效的食品和药物样品中类黄酮检测方法。我们选择一种快速且经济高效的电化学检测方法来分析食品样品中的类黄酮来解决这个问题。在此，我们使用适度的水热法制备了掺杂在不同时间合成的碱金属的氧化钛纳米颗粒，然后在 700°C 下煅烧。随后，采用超声处理法制备了氧化钛纳米颗粒与石墨的纳米复合材料。将制备的纳米复合材料用于芦丁的电化学检测。此外，纳米复合相纯度和元素分布已通过各种结构和形态表征方法进行了仔细审查。随后，纳米复合材料改性的玻碳电极被用于芦丁的电化学传感。它具有广泛的表面积、出色的电子转移能力和高导电性。它还表现出非凡的电化学性能，具有高灵敏度、选择性、准确性和纳摩尔检测能力。各种生物和植物样品的实际可行性体现了显著的回收结果，能够成为即时设备的有希望的候选者。