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.
出处
《分析科学学报》
CAS
CSCD
北大核心
2009年第2期232-234,共3页
Journal of Analytical Science
关键词
普鲁士蓝
化学沉淀
过氧化氢
Prussian blue
Chemical deposition
Hydrogen peroxide
