舒友琴, 袁道强. 氧化锰型固态pH电极的研制[J]. 分析测试技术与仪器, 2000, (2): 109-111.
引用本文: 舒友琴, 袁道强. 氧化锰型固态pH电极的研制[J]. 分析测试技术与仪器, 2000, (2): 109-111.
SHU You-qin, YUAN Dao-qiang. Fabrication of MnO2-based Solid pH Electrode[J]. Analysis and Testing Technology and Instruments, 2000, (2): 109-111.
Citation: SHU You-qin, YUAN Dao-qiang. Fabrication of MnO2-based Solid pH Electrode[J]. Analysis and Testing Technology and Instruments, 2000, (2): 109-111.

氧化锰型固态pH电极的研制

Fabrication of MnO2-based Solid pH Electrode

  • 摘要: 以超细MnO2粉末为敏感材料制备了两种固体pH电极.涂层电极可以在水溶液中呈现出快速稳定的pH响应。响应的线性范围为pH2~12,响应灵敏度为-81.5mV/pH.印刷电极的线性响应范围要略窄于涂层电极,但响应灵敏度近似.

     

    Abstract: Ultrafine MnO2 powders were used to fabricate two kinds of solid pH electrodes. The electrode coated with a thin film of MnO2 could exhibit a fast,stable pH-response in aqueous solution. A linear pH-potential curve was observed over the range of pH 2~12 with a sensitivity of -81.5 mV/pH at room temperature. However,the electrode fabricated with screen-printed method had a little poor than the coated electrode.

     

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