Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China.
Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China; Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China.
Anal Chim Acta. 2022 May 29;1209:338992. doi: 10.1016/j.aca.2021.338992. Epub 2021 Sep 2.
In this paper, a MOF derivative Cu-PF-MOF composed of transition metal copper and ionic liquid [BMIM] PF was used to construct a ratiometric electrochemical sensor for paracetamol detection. Cu-PF-MOF was synthesized by chemical bath method and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), X-ray Photoelectron Spectroscopy (XPS) and X-ray powder diffraction (XRD). Owing to the introduction of ionic liquid [BMIM] PF and the synthetic effect on transition metal copper and ionic liquid [BMIM] PF, Cu-PF-MOF has the higher conductivity, larger electroactive surface area and better intrinsic catalytic properties of the skeletal transition metal, exhibiting enhanced electrocatalytic response to the reduction of paracetamol. The stable reduction peak at -104 mV was used as the ratiometric signal for analytical paracetamol detection using differential pulse voltammetry (DPV), with a linear range of 0.1-100 μM and a detection limit of 0.03 μM (S/N = 3). In addition, the constructed sensor showed good reproducibility, stability and interference resistance, as well as ideal recoveries (98.20%-104.40%) for the analysis of paracetamol in water samples.
本文采用由过渡金属铜和离子液体[BMIM]PF 组成的 MOF 衍生物 Cu-PF-MOF，构建了用于扑热息痛检测的比率型电化学传感器。Cu-PF-MOF 通过化学浴法合成，并通过扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、BET、X 射线光电子能谱 (XPS) 和 X 射线粉末衍射 (XRD) 进行了表征。由于离子液体[BMIM]PF 的引入以及对过渡金属铜和离子液体[BMIM]PF 的合成作用，Cu-PF-MOF 具有更高的电导率、更大的有效电表面积和更好的骨架过渡金属固有催化性能，对扑热息痛的还原表现出增强的电催化响应。使用差分脉冲伏安法 (DPV)，稳定的还原峰在-104 mV 处用作分析扑热息痛的比率信号，线性范围为 0.1-100 μM，检测限为 0.03 μM（S/N = 3）。此外，所构建的传感器在水样中扑热息痛的分析中表现出良好的重现性、稳定性和抗干扰性，以及理想的回收率（98.20%-104.40%）。
