本文用四苯硼—多沙唑嗪形成的缔合物作为电活性物质研制了涂碳PVC膜多沙唑嗪电位传感器。本实验通过改变膜中电活性物质的含量,改变增塑剂的种类,及涂膜时改变电活性物质溶液用量,研究了多沙唑嗪电位传感器的性能。该传感器响应线性范围1.0×10~(-2)—5.0×10~(-5)mol/L,检测下限为3.0×10~(-5)mol/L,斜率为40.6mV/pC。此传感器具有材料廉价、制备简单,响应时间短,重现性、稳定性好的特点。 In this paper, tetraphenyl boron - doxazosin formation of association as an electroactive material developed a carbon film coated doxazosin potential sensor. In this experiment, the performance of doxazosin potential sensor was studied by changing the content of electroactive substances in the membrane, changing the type of plasticizer and changing the dosage of electroactive substance during coating. The linear response range of this sensor was 1.0 × 10 -2 -5.0 × 10 -5 mol / L, and the detection limit was 3.0 × 10 -5 mol / L with a slope of 40.6 mV / pC. This sensor has the characteristics of cheap materials, simple preparation, short response time, reproducibility and good stability.