摘要
用电化学方法制备的聚吡咯膜电极经电化学处理得到具有氢功能的新型导电聚合物H^+离子传感器,并研究了该膜电极的电化学性质,氢离子响应机制以及聚合条件和不同处理方法对电极电位响应性能的影响。该膜电极在pH3～12范围内对pH呈Nernst响应,电极系数为57mV/pH,对Li^+,Na^+,K^+三种离子具有较高的抗干扰性。该电极具有内阻小,响应块,制备简便,响应范围宽等优点。
Polypyrrole membrane electrode was prepared by eletrochemical technique. It is a new kind of conducting polymer of H^+ ion selective eletrode by electrochemical deposition. The electrode's electrochemical behavior, H^+ion potential response mechanism and effect of polymerization conditons and difference disposal on the potential response characteristics were studied. The film electrode shows a Nernst potential response for pH3—12 and electrode coefficient 57mV/pH. The film electrode have higher resistance interference for Li^+, Na^+, K^+. The film electrode has the advantages of low resistance, fast response, easy preparation and wide response range ect.
出处
《延边医学院学报》
CAS
1991年第3期172-175,共4页
Journal of Medical Science Yanbian University
关键词
毗咯
电位响应
电极
氢离子
pyrrole
potential response
electrode
H^+ion
