Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106, Taiwan.
Mikrochim Acta. 2022 Oct 20;189(11):429. doi: 10.1007/s00604-022-05518-9.
In this work, the hydrothermal method was used to synthesize f-BN@BiSnanocomposite and used as an electrocatalyst for the detection of sulfadiazine (SD) drug. Various spectroscopic and voltammetric techniques were adopted to evaluate the morphological and structural features of the prepared materials. The modification of the electrode results in good electrocatalytic activity and excellent sensitive towards the oxidation of SD because of its huge active surface area, high sensitivity, and electrical conductivity provided by the synergistic effects of the f-BN@BiS nanocomposite. This modified electrode exhibited linearity in the range 0.01-62 µM at E = 0.93 V (vs. Ag/AgCl). Furthermore, according to the electrochemical reaction towards the SD, a modified electrode of f-BN@BiS has a LOD value of 0.0015 µM, sensitivity (8.42 μA·μM·cm), good anti-interfering ability, and good repeatability. The suggested electrochemical sensor has high detection performance for monitoring water and urine samples. Notably, relative standard deviations (RSD) and recoveries of the proposed sensor for spiked water and urine samples are in the ranges of 0.014-0.75% and 98.97-99.98% (n = 3), respectively.
在这项工作中，采用水热法合成了 f-BN@BiS 纳米复合材料，并将其用作检测磺胺嘧啶 (SD) 药物的电催化剂。采用各种光谱和伏安技术来评估所制备材料的形貌和结构特征。由于 f-BN@BiS 纳米复合材料的协同效应提供了巨大的比表面积、高灵敏度和导电性，因此电极的修饰导致了对 SD 氧化的良好电催化活性和优异的灵敏度。该修饰电极在 E = 0.93 V（相对于 Ag/AgCl）时，在 0.01-62 μM 的范围内表现出线性关系。此外，根据 SD 的电化学反应，f-BN@BiS 的修饰电极具有 0.0015 μM 的 LOD 值、灵敏度（8.42 μA·μM·cm）、良好的抗干扰能力和良好的重复性。所提出的电化学传感器在监测水样和尿样方面具有高检测性能。值得注意的是，所提出的传感器对水样和尿样的相对标准偏差 (RSD) 和回收率分别在 0.014-0.75%和 98.97-99.98%（n = 3）范围内。
