Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Voltammetric vs. Potentiometric Sensing of Dopamine: Advantages and Disadvantages, Novel Cell Designs, Fundamental Limitations and Promising Options. / Muratova, I.S.; Kartsova, L.A.; Mikhelson, K.N.
в: Sensors and Actuators, B: Chemical, Том 208, 2015, стр. 900-906 .Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Voltammetric vs. Potentiometric Sensing of Dopamine: Advantages and Disadvantages, Novel Cell Designs, Fundamental Limitations and Promising Options
AU - Muratova, I.S.
AU - Kartsova, L.A.
AU - Mikhelson, K.N.
PY - 2015
Y1 - 2015
N2 - Advantages and disadvantages of voltammetric vs. potentiometric sensing of dopamine are discussed. The study is focused on the measurements in small sample volumes, rather than on the selectivity to dopamine. For the potentiometric sensing, a novel flow-through tubular unit is developed. For voltammetric measurements with bare gold and platinum electrodes, miniature cylinder cells with the volume of 200 mcl are developed. The CV and impedance data suggest that the dopamine diffusion to the elec-trode surface is the limiting stage of the whole electrode process which hinders measurements without stirring. It is shown that use of micro electrode arrays allows overpassing this limitation.
AB - Advantages and disadvantages of voltammetric vs. potentiometric sensing of dopamine are discussed. The study is focused on the measurements in small sample volumes, rather than on the selectivity to dopamine. For the potentiometric sensing, a novel flow-through tubular unit is developed. For voltammetric measurements with bare gold and platinum electrodes, miniature cylinder cells with the volume of 200 mcl are developed. The CV and impedance data suggest that the dopamine diffusion to the elec-trode surface is the limiting stage of the whole electrode process which hinders measurements without stirring. It is shown that use of micro electrode arrays allows overpassing this limitation.
KW - Dopamine Potentiometry Voltammetry Planar electrodes Micro-electrode arrays
U2 - 10.1016/j.snb.2014.07.034
DO - 10.1016/j.snb.2014.07.034
M3 - Article
VL - 208
SP - 900
EP - 906
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -
ID: 3923197