A method and system are provided for extracting a target analyte from a sample using acoustic ejection technology. The method involves applying focused acoustic energy to a fluid reservoir housing a fluid composition that contains a target analyte and comprises an upper region and a lower region, where the concentration of the target analyte in the upper region differs from that in the lower region. The focused acoustic energy is applied in a manner that is effective to result in the ejection of a fluid droplet from from the fluid composition into a droplet receiver, wherein the concentration of the analyte in the droplet corresponds to either the concentration of the analyte in the upper region or the concentration of the analyte in the lower region, and wherein the concentration of the analyte is substantially uniform throughout the droplet. The fluid composition may comprise an ionic liquid, used in the extraction of ionic target analytes. Related methods and an acoustic extraction system are also provided.
本文提供了一种利用声学喷射技术从样品中提取目标分析物的方法和系统。该方法包括将聚焦声波能量应用于一个流体储液器,该储液器容纳含有目标分析物的流体组合物,并包括一个上部区域和一个下部区域,其中上部区域的目标分析物浓度与下部区域的目标分析物浓度不同。聚焦声能的应用方式能有效地将流体液滴从流体组合物中喷射到液滴接收器中,其中液滴中分析物的浓度与上部区域中分析物的浓度或下部区域中分析物的浓度相对应,并且分析物的浓度在整个液滴中基本均匀。流体成分可包括
离子液体,用于离子目标分析物的萃取。还提供了相关方法和声学萃取系统。