Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan.
Department of Pet Healthcare, Yuanpei University of Medical Technology, Hsinchu, Taiwan.
Food Chem. 2022 Jun 1;378:132083. doi: 10.1016/j.foodchem.2022.132083. Epub 2022 Jan 8.
We develop a disposable electrochemical sensor using a titanium nanoparticles (Ti NPs)-anchored functionalized multi-walled carbon nanotube (Ti@f-MWCNTs) composite as electrochemical sensing interface for the detection of ractopamine (RAC). The sensor demonstrated superior electrochemical sensing ability with a broad linear response range (0.01-185 μM) and ultralow detection limit (0.0038 µM). In addition, the stability, repeatability, reproducibility, and anti-interference ability of the Ti@f-MWCNTs sensor were satisfactory. The practicability of the sensor was effectively employed for the determination of RAC in porcine samples including pork, pig urine, and pig serum with substantial recoveries in the range of 92%-99% and a relative standard deviation of less than 5%.
我们开发了一种一次性电化学传感器，使用钛纳米粒子（Ti NPs）锚定功能化多壁碳纳米管（Ti@f-MWCNTs）复合材料作为电化学传感界面，用于检测莱克多巴胺（RAC）。该传感器表现出优异的电化学传感能力，具有较宽的线性响应范围（0.01-185 μM）和超低的检测限（0.0038 μM）。此外，Ti@f-MWCNTs 传感器的稳定性、重复性、重现性和抗干扰能力令人满意。该传感器的实用性已有效地用于检测猪肉、猪尿和猪血清等猪样品中的 RAC，回收率在 92%-99%范围内，相对标准偏差小于 5%。
