表面等离子共振
检出限
分子印迹聚合物
聚合
材料科学
乙二醇二甲基丙烯酸酯
石墨氮化碳
分子印迹
氮化碳
分析化学(期刊)
化学
纳米技术
选择性
色谱法
聚合物
有机化学
光催化
纳米颗粒
催化作用
甲基丙烯酸
复合材料
作者
Şule Yıldırım Akıcı,Bahar Bankoğlu Yola,Betül Karslıoğlu,İlknur Polat,Necip Atar,Mehmet Lütfi Yola
摘要
This research attempt involved the development and utilization of a newly designed surface plasmon resonance (SPR) sensor which incorporated sulfur-doped graphitic carbon nitride (S-g-C3N4) as the molecular imprinting material. The primary objective was to employ this sensor for the quantitative analysis of Fenpicoxamid (FEN) in rice samples. The synthesis of S-g-C3N4 with excellent purity was achieved using the thermal poly-condensation approach, which adheres to the principles of green chemistry. Afterwards, UV polymerization was utilized to fabricate a surface plasmon resonance (SPR) chip imprinted with FEN, employing S-g-C3N4 as the substrate material. This process involved the inclusion of N,N′-azobisisobutyronitrile (AIBN) as the initiator, ethylene glycol dimethacrylate (EGDMA) as the cross-linker, methacryloylamidoglutamic acid (MAGA) as the monomer, and FEN as the analyte. After successful structural analysis investigations on a surface plasmon resonance (SPR) chip utilizing S-g-C3N4, which was imprinted with FEN, a comprehensive investigation was conducted using spectroscopic, microscopic, and electrochemical techniques. Subsequently, the kinetic analysis applications, namely the determination of the limit of quantification (LOQ) and the limit of detection (LOD), were carried out. For analytical results, the linearity of the FEN-imprinted SPR chip based on S-g-C3N4 was determined as 1.0–10.0 ng L−1 FEN, and LOQ and LOD values were obtained as 1.0 ng L−1 and 0.30 ng L−1, respectively. Finally, the prepared SPR sensor’s high selectivity, repeatability, reproducibility, and stability will ensure safe food consumption worldwide.
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