Ready-to-drink teas can provide, if properly packaged, the taste and wellness character of traditional teas. Nevertheless, in tea processing, there may be several contaminations, among which polycyclic aromatic hydrocarbons (PAHs), anthropogenic contaminants that can present carcinogenic and mutagenic properties. In this work, a novel low-density deep eutectic solvent-based dispersive liquid-liquid microextraction (LDDES-DLLME) procedure followed by gas chromatography tandem mass spectrometry (GC-MS/MS) was optimized for analysis of 15 polycyclic aromatic hydrocarbons (PAHs) in ready-to-drink herbal-based beverages. The new deep eutectic solvent (DES) was synthesized with natural compounds (camphor and hexanoic acid). Several parameters of the extraction procedure such as type and volume of extraction solvent, type, volume of dispersive solvent, and time of extraction were evaluated to achieve the highest yield and to attain the lowest detection limits. The validated method showed very low limits of detection (0.01 μg L⁻¹) and quantification (0.2 μg L⁻¹), good inter- and intra-day precisions (RSD<16.87%), and recoveries higher than 69%. The method was applied to 16 type of samples and it was found total PAHs levels ranging from 0.20 to 1.82 μg L⁻¹. The developed LDDES-DLLME showed a reliable and innovative alternative for the extraction of PAHs from beverages, cost-effective and environmentally friendly, and providing a satisfactory throughput.

即饮茶如果包装得当，可以提供传统茶的味道和健康特征。然而，在茶叶加工过程中，可能会出现多种污染，其中多环芳烃（PAHs）是人为污染，可能具有致癌和诱变特性。在这项工作中，优化了一种新颖的低密度深共溶剂基分散液-液微萃取（LDDES-DLLME）方法，然后进行气相色谱串联质谱分析（GC-MS / MS），以分析15种多环芳烃（PAHs） ）即饮型草药饮料。用天然化合物（樟脑和己酸）合成了新型的深共晶溶剂（DES）。萃取程序的几个参数，例如萃取溶剂的类型和体积，分散溶剂的类型，体积，评估提取时间和萃取物以获得最高收率和最低检测限。经验证的方法显示出极低的检测限（0.01μgL^-1）和定量分析（0.2μgL ^-1），日间和日间精度高（RSD <16.87％），回收率高于69％。将该方法应用于16种样品，发现总PAHs水平为0.20至1.82μgL ^-1。研发的LDDES-DLLME展示了一种可靠，创新的替代方法，可用于从饮料中提取PAH，具有成本效益和环境友好性，并提供令人满意的产量。