The detection of polycyclic aromatic hydrocarbons (PAHs) and their metabolites in food and in agricultural sources is an important research objective due to the PAHs' known persistence, carcinogenicity, and toxicity. PAHs have been found in the milk of lactating cows, and in the leaves and stems of plants grown in PAH-contaminated areas, thereby making their way into both cow milk and plant milk alternatives. Reported herein is the rapid, sensitive, and selective detection of 10 PAHs and PAH metabolites in a variety of cow milks and plant milk alternatives using fluorescence energy transfer from the PAH to a high quantum yield fluorophore, combined with subsequent array-based statistical analyses of the fluorescence emission signals. This system operates with high sensitivity (low micromolar detection limits), selectivity (100% differentiation even between structurally similar analytes), and general applicability (for both unmodified lipophilic PAHs and highly polar oxidized PAH metabolites, as well as for different cow and plant milk samples). These promising results show significant potential to be translated into solid-state devices for the rapid, sensitive, and selective detection of PAHs and their metabolites in complex, commercial food products.

中文翻译：

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环糊精促进的荧光检测商业奶制品中的芳香族有毒物和有毒代谢物。

由于多环芳烃 (PAH) 已知的持久性、致癌性和毒性，食品和农业来源中多环芳烃 (PAH) 及其代谢物的检测是一个重要的研究目标。哺乳期奶牛的牛奶以及多环芳烃污染地区种植的植物的叶子和茎中都发现了多环芳烃，因此它们进入了牛奶和植物奶替代品中。本文报道了利用从 PAH 到高量子产率荧光团的荧光能量转移，结合随后基于阵列的统计分析，快速、灵敏、选择性地检测各种牛奶和植物奶替代品中的 10 种 PAH 和 PAH 代谢物。荧光发射信号。该系统具有高灵敏度（低微摩尔检测限）、选择性（即使在结构相似的分析物之间也能 100% 区分）和普遍适用性（对于未修饰的亲脂性 PAH 和高极性氧化 PAH 代谢物，以及不同的牛奶和植物奶）样品）。这些有希望的结果显示出转化为固态设备的巨大潜力，用于快速、灵敏和选择性地检测复杂的商业食品中的 PAH 及其代谢物。