普鲁士蓝修饰碳糊电极测定过氧化氢的研究  

Determination of H_2O_2 Using Prussian Blue Modified Carbon Paste Electrode

作　　者：陈昌国[1] 董海峰[1] 卢惠婷[1] 

机构地区：[1]重庆大学化学化工学院,重庆400030

出　　处：《分析科学学报》2009年第2期232-234,共3页Journal of Analytical Science

摘　　要：将普鲁士蓝（PB）化学沉淀在活化后的石墨粉上，利用硅油做粘合剂，制作碳糊电极。碳糊电极在pH=7．5时稳定性很好。该电极对过氧化氢检测的线性范围为5．0× 10^-6～7．0× 10^-4mol／L，检出限为2．0× 10^-6mol／L。对碳糊电极在过氧化氢检测过程中的传递系数、扩散系数、稳定性、重现性等进行了系统的研究。PB/carbon paste electrode is prepared by chemically depositing Prussian blue on activated graphite powder and mixing with silicon oil binder. Cyclic voltammetric results showed that PB/carbon paste electrode is stable in solution of pH=7.5. A linear range of 5.0× 10^-6 ～7.0 × 10^-4 mol/L with detection limit of 2. 0 × 10^-6 mol/L was obtained for the determination of H2O2. The transfer coefficient, diffusion coefficient, stability and reproducibility were also investigated.

关 键 词：普鲁士蓝 化学沉淀 过氧化氢 

分 类 号：O657.1[理学—分析化学]