Herein, a new extraction method employing a surfactant-coated titanium-based nanomagnetic sorbent for the effective extraction of bisphenol A (BPA) from various water samples was developed. Initially, the titanium-based nanomagnetic particles (Fe₃O₄/SiO₂/TiO₂ NPs) were successfully synthesized and subsequently characterized by Transmission Electron Microscopy and Fourier-transform infrared spectrometry. Two cationic surfactants were then incorporated into the particles to form a new sorbent for enhancing the extraction of BPA through micelle formation. Once the analyte was extracted, it was desorbed from the sorbent and quantified by high performance liquid chromatography with ultra violet detection (HPLC-UV). Various factors affecting the extraction and desorption of the analyte were investigated in detail and the optimum conditions established. Under these established conditions, the calibration curve was linear over the concentration range of 1–500 ng/mL. The limit of detection was determined to be 0.5 ng/mL based on a signal-to-noise ratio (S/N) = 3. To test the extraction efficiency, the method was applied to various real water samples that were spiked. The average recoveries obtained from the spiked samples ranged between 92–105% with relative standard deviations of 3.2–7.8%. Finally, the approach was determined to be effective for BPA environmental analysis.

本文中，开发了一种新的提取方法，该方法采用表面活性剂涂覆的钛基纳米磁性吸附剂从各种水样中有效提取双酚A（BPA）。最初，钛基纳米磁性颗粒（Fe ₃ O ₄ / SiO ₂ / TiO ₂NPs）已成功合成，随后通过透射电子显微镜和傅里叶变换红外光谱进行了表征。然后将两种阳离子表面活性剂掺入颗粒中以形成新的吸附剂，以增强通过胶束形成对BPA的萃取。提取分析物后，将其从吸附剂中解吸出来，并通过具有紫外检测器（HPLC-UV）的高效液相色谱进行定量。详细研究了影响分析物提取和解吸的各种因素，并确定了最佳条件。在这些确定的条件下，校准曲线在1–500 ng / mL的浓度范围内是线性的。根据信噪比（S / N）= 3确定检测限为0.5 ng / mL。为测试提取效率，该方法适用于各种加标的真实水样。从加标样品中获得的平均回收率介于92％至105％之间，相对标准偏差为3.2％至7.8％。最后，该方法被确定对BPA环境分析有效。