This study created a nanocomposite of AgVO₃ and a modified glassy carbon electrode (β-AgVO₃@c-CNTs/GCE) and looked into how it might be used to measure nitrite in food samples electrochemically. The AgVO₃@CNTs nanocomposite was made using a hydrothermal process. Structural studies using X-ray diffraction, X-ray photoelectron spectroscopy and field emission scanning electron microscopy analyses validated the efficient production of the AgVO₃@c-CNTs nanocomposite. Electrochemical studies using cyclic voltammetry (CV) and amperometry analyses revealed that the surface of β-AgVO₃@c-CNTs/GCE exhibited the highest electrocatalytic activity for the oxidation of NO₂ˉ. This surface had a low detection limit of 5.4 nM, a linear range from 5 to 4120 µM, and a sensitivity of 0.27222 µA/µM. To test the method’s effectiveness, recovery tests were done on actual samples that were made from sausage samples. The results showed that the recommended technique for nitrite detection in food samples was accurate and practical, with relative standard deviation values ranging from 3.30 to 4.18% and recovery rates from 94.50 to 99.00%.

_{这项研究创建了 AgVO 3}和改性玻碳电极 (β-AgVO ₃ @c-CNTs/GCE)的纳米复合材料，并研究了如何使用它来电化学测量食品样品中的亚硝酸盐。AgVO ₃ @CNTs 纳米复合材料是采用水热工艺制成的。使用 X 射线衍射、X 射线光电子能谱和场发射扫描电子显微镜分析进行的结构研究验证了 AgVO ₃ @c-CNT 纳米复合材料的高效生产。使用循环伏安法（CV）和电流分析法进行的电化学研究表明，β-AgVO _{3 @c-CNTs/GCE 的表面对 NO 2} ˉ的氧化表现出最高的电催化活性。该表面的检测限低至 5.4 nM，线性范围为 5 至 4120 µM，灵敏度为 0.27222 µA/µM。为了测试该方法的有效性，对由香肠样品制成的实际样品进行了回收率测试。结果表明，推荐的食品样品中亚硝酸盐检测技术准确实用，相对标准偏差值为3.30~4.18%，回收率为94.50~99.00%。