In this work, a new electrochemical sensor was fabricated based on Sr₂PdO₃ nano-perovskite manually mixed with carbon nanotubes (CNTs) and casted on glassy carbon (GC) electrode surface; GC/(CNTs-Sr₂PdO₃). Enhanced sensitivity, selectivity, stability and electron transfer kinetics were realized by the application of nano-perovskite modified carbon nanotubes composite for determination of dobutamine (DB). The proposed sensor showed high electro-catalytic activity in the linear dynamic range of 0.03 μmol L⁻¹ to 50 μmol L⁻¹ with sensitivity of 20.91 μA/μmol L⁻¹, detection limit of 0.012 nmol L⁻¹ and a quantification limit of 0.04 nmol L⁻¹. The proposed method was successfully applied for DB detection in blood serum samples with good recovery results. The sensor showed anti-interfering ability in presence of common interferences as ascorbic acid, uric acid, acetaminophen, serotonin and morphine.

在这项工作中，基于Sr ₂ PdO ₃纳米钙钛矿手动混合碳纳米管（CNT）并浇铸在玻璃碳（GC）电极表面上，制造了一种新的电化学传感器。GC /（CNTs-Sr ₂ PdO ₃）。通过应用纳米钙钛矿修饰的碳纳米管复合材料测定多巴酚丁胺（DB），提高了灵敏度，选择性，稳定性和电子转移动力学。所提出的传感器在0.03μmolL ^-1至50μmolL ^-1的线性动态范围内显示出高的电催化活性，灵敏度为20.91μA/μmolL ^-1，检测极限为0.012 nmol L ^-1定量限为0.04 nmol L ^-1。该方法成功地用于血清样品中DB的检测，回收率良好。该传感器在常见干扰物如抗坏血酸，尿酸，对乙酰氨基酚，5-羟色胺和吗啡的干扰下均显示出抗干扰能力。