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用循环伏安法（ＣＶ）制备了聚吡咯亚硝酸根离子选择性电极。表征了电极的性能。在１０－１～５×１０－５ｍｏｌ／Ｌ浓度范围内电极电位与亚硝酸根离子浓度成良好的线性关系，斜率５１ｍＶ／ＰＮＯ－２。观察了ＮＯ－２在ＰＰｙ膜中掺杂－去掺杂过程，从而验证了电极响应是基于掺杂机理。
Polypyrrole nitrite ion selective electrode was prepared by cyclic voltammetry (CV). Characterization of the electrode performance. In the range of 10-1 ~ 5 × 10-5mol / L, the potential of the electrode showed a good linear relationship with the concentration of nitrite ion with a slope of 51mV / PNO-2. The doping-dedoping process of NO-2 in the PPy film was observed, thus verifying that the electrode response is based on the doping mechanism.