摘要
电化学法制备的导电性聚噻吩修饰玻璃碳电极可作为一种新型广谱响应的电位传感器。对所研究的二十余种常见电解质溶液,电位-浓度对数,特别是电位-溶液电导对数有良好的线性关系,后者线性范围达5～5×10~4μS/cm(相当于1×10^(-5)～1mol/L浓度范围)。该电极易于制备,响应快,稳定性好。结合电极暂态电位响应行为,初步探讨了电极响应机制。
Polythiophene modified glassy carbon electrode was prepared by electrochemical polymerization method. This electrode can be used as a universal response potentiometric sensor. E-logC, especially E-logo (E,C and бrepresents potential, electrolyte concentration and conductivity of the solujon, respectively)curves show good linear relationship. For the latter, he linear range is about 5×10~0～5×10~4μS/cm(analogous to concentration range: 1×10^(-5)～1mol/L). This all-solid-s ate electrode is easy to prepare, responds fast, and has good stability and reproducibility. The response mechanism was discussed consulting, the transient porential response behaviors.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1990年第1期10-14,共5页
Chinese Journal of Analytical Chemistry
关键词
聚噻吩
修饰电极
电位传感器
Polythiophene
Modified electrode
Potentiometric sensor
Transient response
