TY - JOUR
T1 - All-solid-state potassium-selective electrode using double-layer film of polypyrrole/polyanion composite and plasticized poly(vinyl chloride) containing valinomycin
AU - Momma, T.
AU - Komaba, S.
AU - Yamamoto, M.
AU - Osaka, T.
AU - Yamauchi, S.
N1 - Funding Information:
The authors would like to thank Miss Yoshiio Tak-emura for her assistance with the experiments. This work was financially supported by a Grant-in-Aid for Scientific Research on Priority Areas, the Ministry of Education, Science and Culture of Japan.
PY - 1995/4
Y1 - 1995/4
N2 - All-solid-state potassium-selective electrodes have been constructed on a Pt disk electrode using a double-layer film of polypyrrole/poly(4-styrenesulfonate) (PPy/PSS) composite covered with a plasticized poly(vinyl chloride) (PVC) membrane containing valinomycin. The lower composite layer is formed by electropolymerization of pyrrole in an aqueous solution containing poly(sodium 4-styrenesulfonate), and the upper PVC layer is formed by casting. The double-layer film electrode using this composite shows no overshoot and lower drift of the standard potential than both a single PVC-coated electrode and a double-layer electrode using polypyrrole doped with ClO4-. This is due to both the highly electrochemical activity of the lower PPy/PSS and the cation-exchange ability between the PPy/PSS and the potassium-selective membrane.
AB - All-solid-state potassium-selective electrodes have been constructed on a Pt disk electrode using a double-layer film of polypyrrole/poly(4-styrenesulfonate) (PPy/PSS) composite covered with a plasticized poly(vinyl chloride) (PVC) membrane containing valinomycin. The lower composite layer is formed by electropolymerization of pyrrole in an aqueous solution containing poly(sodium 4-styrenesulfonate), and the upper PVC layer is formed by casting. The double-layer film electrode using this composite shows no overshoot and lower drift of the standard potential than both a single PVC-coated electrode and a double-layer electrode using polypyrrole doped with ClO4-. This is due to both the highly electrochemical activity of the lower PPy/PSS and the cation-exchange ability between the PPy/PSS and the potassium-selective membrane.
KW - Polymers
KW - Polypyrrole
KW - Potassium-selective electrodes
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U2 - 10.1016/0925-4005(95)85160-7
DO - 10.1016/0925-4005(95)85160-7
M3 - Article
AN - SCOPUS:0029292054
VL - 25
SP - 724
EP - 728
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
SN - 0925-4005
IS - 1-3
ER -