In this work, we describe for the first time the use of iron(III) thenoyltrifluoroacetonate complex (Fe(TTA)₃) as a novel sorbent for solvent-assisted dispersive micro-solid phase extraction (SA-dμSPE) of bisphenols from water samples. The extraction procedure is based on the formation of nanoparticles in situ following the rapid injection of a methanolic solution of Fe(TTA)₃ into the stirred aqueous sample. Herein, the synthesis of Fe(TTA)₃ and study of the essential parameters of the preparative procedure are described. The optimized procedure allowed for efficient enrichment of bisphenols from various water samples, chosen as model contaminants and matrix, within 2.5 min. The sorbent was collected by centrifugation, dissolved in methanol, and injected to perform HPLC with spectrophotometric detection. The limits of detection and quantification obtained ranged from 1.0–3.1 and 3.1–7.5 μg L⁻¹, respectively. Intraday and interday precisions of <7% relative standard deviation (RSD) and <8% RSD with analyte recoveries ranging between 70–117% (103.8% on average) were obtained for the analysis of river water, wastewater treatment plant effluent, and bottled water.

中文翻译：

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使用铁 (III) 噻吩酰三氟丙酮络合物 (Fe(TTA)3) 作为新型纳米结构吸附剂的溶剂辅助分散微固相萃取双酚：概念证明

在这项工作中，我们首次描述了使用铁 ( III ) 噻吩酰三氟丙酮络合物 (Fe(TTA) ₃ ) 作为溶剂辅助分散微固相萃取 (SA-dμSPE) 水样中双酚类的新型吸附剂. 提取程序基于在将Fe(TTA) ₃的甲醇溶液快速注入搅拌的含水样品后原位形成纳米颗粒。_{在此，Fe(TTA) 3}的合成描述了制备过程的基本参数和研究。优化的程序允许在 2.5 分钟内从各种水样中有效富集双酚，这些水样被选为模型污染物和基质。通过离心收集吸附剂，将其溶解在甲醇中，并注入进行具有分光光度法检测的HPLC。获得的检测限和定量限分别为 1.0–3.1 和 3.1–7.5 μg L ^-1。分析河水、污水处理厂流出物和瓶装水的日内和日间精密度 <7% 相对标准偏差 (RSD) 和 <8% RSD，分析物回收率在 70–117% 之间（平均 103.8%）水。