The two-dimensional metal chalcogenides (TMC) have been fascinated more interest in a wide range of electrochemical applications owing to their high conductivity and excellent catalytic performance. Herein, we report the electrochemical sensor based on the urchin-like structured bimetallic strontium sulfide and bismuth sulfide (SrS/Bi₂S₃) nanocomposites prepared by a simple hydrothermal method. For the first time, the prepared SrS/Bi₂S₃ nanocomposites were used to sense the carcinogenic herbicide maleic hydrazide (MHZ) in food and water samples. Moreover, the analytical performance of SrS/Bi₂S₃ modified screen-printed carbon electrode (SrS/Bi₂S₃/SPC electrode) shows excellent results with a wide range of (0.01–104 µM and 104–814 µM), and the detection limit of 1.8 nM towards the MHZ detection. Furthermore, the developed sensor expressed good selectivity, repeatability, stability, and reproducibility. Finally, the real sample analysis of the developed sensor was tested in the potatoes and river water samples, which shows the recoveries of 97.8–98.9% and 97.2–98.2%.

二维金属硫属化物（TMC）由于其高导电性和优异的催化性能而在广泛的电化学应用中引起了人们的兴趣。在此，我们报道了一种基于海胆状结构的双金属硫化锶和硫化铋（SrS/Bi ₂ S _{3 ）纳米复合材料的}电化学传感器，该复合材料通过简单的水热法制备。首次将制备的SrS/Bi ₂ S ₃纳米复合材料用于检测食品和水样中的致癌除草剂马来酰肼（MHZ）。此外，SrS/Bi ₂ S ₃改性丝网印刷碳电极（SrS/Bi ₂S ₃ /SPC 电极）显示出优异的结果，范围很广（0.01–104 µM 和 104–814 µM），MHZ 检测的检测限为 1.8 nM。此外，开发的传感器表现出良好的选择性、可重复性、稳定性和再现性。最后，在马铃薯和河水样品中测试了所开发传感器的真实样品分析，显示回收率为 97.8-98.9% 和 97.2-98.2%。