High-performance core-shell designed molecularly imprinted polymer solid-phase extraction for ultrasensitive spectrophotometric monitoring of bisphenol-A

IF 4.2 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2026-09-15 DOI:10.1007/s00289-026-06686-x

Muhammad Saqaf Jagirani, Aamna Balouch, Ikramullah Jagirani, Aftab Hussain Khuhawar

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Abstract

This study reports a facile co-precipitation polymerization procedure for the design of a core-shell molecularly imprinted polymeric material for solid-phase extraction coupled with spectrophotometry for the detection of bisphenol-A (BPA) in real environmental samples. The prepared molecularly imprinted polymers (MIPs) were analyzed using modern analytical techniques, including FT-IR, FESEM, and UV/Vis spectroscopy. The resultant polymeric material was used as an adsorbent for solid-phase extraction (SPE) of BPA. Various factors have been studied to achieve the maximum adsorption capacity, including pH, adsorption time, adsorbent dose, and shaking speed. The optimized results show that the designed method best suits the Langmuir isotherm model and follows the pseudo-second-order kinetic model. Good linearity was achieved in the 2–10 µg/L range. The designed experiment’s detection and quantification limits were up to 0.98 and 329.5 ng/L, respectively. The maximum adsorption capacity was 112.35 mg/g at pH 6. The relative selectivity factor of BPA with other coexisting molecules is less than one. The selectivity results justify that the BPA-MIP polymeric material is highly selective toward the BPA molecule. The proposed technique was successfully used to analyze real environmental samples.

Graphical abstract

Preparation and leaching, and adsorption and desorption of BPA-MIP

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高性能核壳设计的分子印迹聚合物固相萃取超灵敏分光光度法监测双酚a

本研究报告了一种简单的共沉淀聚合方法，用于设计一种核-壳分子印迹聚合物材料，用于固相萃取和分光光度法检测真实环境样品中的双酚a （BPA）。利用FT-IR、FESEM和UV/Vis光谱等现代分析技术对制备的分子印迹聚合物（MIPs）进行了分析。将合成的高分子材料作为固相萃取双酚a的吸附剂。研究了pH值、吸附时间、吸附剂剂量和摇动速度等因素对最大吸附量的影响。优化结果表明，所设计的方法最符合Langmuir等温线模型，符合拟二阶动力学模型。在2 ~ 10µg/L范围内具有良好的线性关系。设计的实验检测限和定量限分别为0.98和329.5 ng/L。pH值为6时，最大吸附量为112.35 mg/g。双酚a与其他共存分子的相对选择性因子小于1。结果表明，双酚a - mip高分子材料对双酚a分子具有较高的选择性。该方法已成功地应用于实际环境样品的分析。图示：BPA-MIP的制备、浸出、吸附与解吸

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."