Abstract Luteolin is a medicinal flavonoid that exists in many plants. The development of an accurate, quick and low-cost detection of luteolin is highly desired. In this work, we proposed a simple microwave approach for loading Au NPs on boron nitride nanosheets (BNNS) with high electrocatalytic activity towards luteolin oxidation. Then, square wave voltammetry was used for the quantitative determination of luteolin. The proposed BNNS-Au NPs modified glassy carbon electrode exhibited a wide linear detection range from 5 to 1200 pM and 0.02 to 10 μM with a low detection of limit of 1.7 pM. For real sample analysis, the detection of luteolin in Perilla was conducted for the first time using the electrochemical method. Moreover, the proposed sensor was also successfully applied for determining luteolin in peanut hulls.

中文翻译：

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基于Au NPs负载氮化硼纳米片方波伏安法定量测定花生壳和紫苏中黄酮类木犀草素

摘要 木犀草素是一种药用类黄酮，存在于多种植物中。非常需要开发一种准确、快速和低成本的木犀草素检测方法。在这项工作中，我们提出了一种简单的微波方法，用于在氮化硼纳米片 (BNNS) 上负载 Au NP，对木犀草素氧化具有高电催化活性。然后，方波伏安法用于木犀草素的定量测定。所提出的 BNNS-Au NPs 修饰的玻碳电极表现出从 5 到 1200 pM 和 0.02 到 10 μM 的宽线性检测范围，低检测限为 1.7 pM。对于实际样品分析，首次使用电化学方法检测紫苏中的木犀草素。此外，所提出的传感器还成功地应用于测定花生壳中的木犀草素。