基于普鲁士蓝修饰碳糊电极的电化学传感器对偏二甲肼检测研究

在偏二甲肼的氧化中使用普鲁士蓝作为合适的电子转移调节剂,应用普鲁士蓝修饰碳糊电极(PB/CPE)作为工作电极,循环伏安法技术可以应用在偏二甲肼的电催化氧化上。通过观察PB/CPE的电化学行为和偏二甲肼在工作电极上的电化学响应,来具体评估PB/CPE对偏二甲肼溶液浓度测定的可靠性。结果表明,普鲁士蓝可以作为促进偏二甲肼氧化的催化剂,利用电流测定法得出测定的线性范围为0.3~80 mg·L~(-1),检测限为4.6×10~(-5)g·L~(-1)。该传感器表现出许多优势,其中包括很少的干扰、简单的准备和良好的稳定性。

Research on Determination of the UDMH Base on Prussian Blue Modified Carbon Paste Electrode

Prussian Blue acts as a suitable modifier for electron transfer in the oxidation of UDMH, to use the PBMCPE as working electrode , and the electrocatalytic oxidation of UDMH has been studied on a Prussian Blue modified carbon paste electrode (PBMCPE) by cyclic voltammetry technique. To observe the electrochemical behavior of the PBMCPE and the electrochemical response of UDMH on the working electrode, and assessing the reliability of measurement to the concentration of UDMH in PBMCPE.The result shows that PB can be used as the catalyst to promote oxidation of UDMH, a linear range of 0.3 mgL-1 to 80 mgL-1, with a limit of detection of 4.6×10-5 gL-1 was obtained using the amperometric method. The proposed sensor exhibited several advantages, including, namely,litle interference,simple preparation and good stability.