Research output: Contribution to journal › Article › peer-review
Potassium-selective conductometric sensor. / Shvarev, Alexey E.; Rantsan, Dmitriy A.; Mikhelson, Konstantin N.
In: Sensors and Actuators, B: Chemical, Vol. 76, No. 1-3, 01.06.2001, p. 500-505.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Potassium-selective conductometric sensor
AU - Shvarev, Alexey E.
AU - Rantsan, Dmitriy A.
AU - Mikhelson, Konstantin N.
PY - 2001/6/1
Y1 - 2001/6/1
N2 - Potassium-selective membranes known as sensing modules for potentiometric ion-selective electrodes are studied in ac-impedance mode. It is shown that the bulk resistance of thin (20-250 μm) membranes depends on the composition of aqueous bathing solution. The results are explained in terms of surface conductivity in space-charge region, in the vicinity of water microdroplets in membranes. A planar potassium-selective sensor with a conductometric signal is proposed.
AB - Potassium-selective membranes known as sensing modules for potentiometric ion-selective electrodes are studied in ac-impedance mode. It is shown that the bulk resistance of thin (20-250 μm) membranes depends on the composition of aqueous bathing solution. The results are explained in terms of surface conductivity in space-charge region, in the vicinity of water microdroplets in membranes. A planar potassium-selective sensor with a conductometric signal is proposed.
KW - Conductometric sensor
KW - Potassium
KW - Solvent-polymeric membrane
KW - Valinomycin
UR - http://www.scopus.com/inward/record.url?scp=0035369429&partnerID=8YFLogxK
U2 - 10.1016/S0925-4005(01)00601-3
DO - 10.1016/S0925-4005(01)00601-3
M3 - Article
AN - SCOPUS:0035369429
VL - 76
SP - 500
EP - 505
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
IS - 1-3
ER -
ID: 92359657