The present work scrutinized the voltammetric analysis of hazardous herbicide aclonifen (ACF) in actual soil and river water samples utilizing the electrochemical method. The electrochemical sensing device was fabricated for the determination of ACF using gadolinium niobate (GdNbO₄) nanoparticles modified glassy carbon electrode (GCE). The novel GdNbO₄ sensing material was prepared via a simple co-precipitation method. Several characterization techniques (TEM, EDS, XRD, XPS, and BET) were utilized to analyze the structural features of the GdNbO₄. The enhanced electrochemical behavior of GdNbO₄ modified GCE towards ACF was observed compared to bare GCE. The cyclic voltammetry response revealed that the prepared sensor shows the lower negative potential with a dramatic increase in the peak current of ACF compared to bare GCE. In the differential pulse voltammetry, the limit of detection (1.15 nM) and sensitivity (23 μA μM⁻¹ cm⁻²) of the ACF on the GdNbO₄ modified GCE was comparatively superior to the formerly proposed ACF based sensor. This sensor reveals good selectivity, repeatability, reproducibility, and long-term stability. The reliability of the sensor exhibits satisfactory recovery results for ACF detection in river water and soil samples.

目前的工作详细审查了使用电化学方法对实际土壤和河水样品中的危险除草剂阿昔洛芬（ACF）进行伏安分析。使用铌酸（（GdNbO ₄）纳米粒子修饰的玻碳电极（GCE）制造了用于测定ACF的电化学传感装置。通过一种简单的共沉淀方法制备了新型的GdNbO ₄传感材料。几种表征技术（TEM，EDS，XRD，XPS和BET）被用于分析GdNbO ₄的结构特征。GdNbO ₄的增强电化学行为与裸GCE相比，观察到了针对ACF的改良GCE。循环伏安法响应表明，与裸露的GCE相比，所制备的传感器显示出较低的负电位，且ACF的峰值电流显着增加。在差分脉冲伏安法中，在GdNbO ₄修饰的GCE上ACF的检出限（1.15 nM）和灵敏度（23μAμM ^-1 cm ^-2）相对优于以前提出的基于ACF的传感器。该传感器具有良好的选择性，可重复性，可重复性和长期稳定性。该传感器的可靠性为河流水和土壤样品中的ACF检测提供了令人满意的恢复结果。