Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Towards stabilization of the potential response of Mn(III) tetraphenylporphyrin-based solid-state electrodes with selectivity for salicylate ions. / Skripnikova, Tatiana A.; Starikova, Anna A.; Shumilova, Galina I.; Ermolenko, Yuri E.; Pendin, Andrey A.; Mourzina, Yulia G.
в: Journal of Solid State Electrochemistry, Том 21, № 8, 01.08.2017, стр. 2269-2279.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Towards stabilization of the potential response of Mn(III) tetraphenylporphyrin-based solid-state electrodes with selectivity for salicylate ions
AU - Skripnikova, Tatiana A.
AU - Starikova, Anna A.
AU - Shumilova, Galina I.
AU - Ermolenko, Yuri E.
AU - Pendin, Andrey A.
AU - Mourzina, Yulia G.
PY - 2017/8/1
Y1 - 2017/8/1
N2 - We report a new type of solid-state electrode (type I) of a simple design with polyvinyl chloride membranes based on Mn(III) tetraphenylporphyrin and with graphite as the electronically conducting substrate. Enlargement of the membrane/graphite contact area by soaking graphite in the plasticizer with subsequent conditioning of the electrode at 30 °C allowed us to shorten the time required to achieve steady potential values of the sensors to just 3 days. These electrodes do not require a specially added RedOx system in the transducer layer. Stabilization of the EMF response of type I electrodes is compared to type II electrodes which contain a Cu0/Cu2+ RedOx couple in the transducer layer. Type I sensors are suitable for measuring the salicylate ion concentration in the clinically important concentration range down to 2.5 × 10−4 M with a sensitivity to salicylate ion of −59.0 mV decade−1 in solutions with a high constant background of chloride ions of 0.12 M at pH = 5.3, making this a promising technique for an effective design of solid-contact ion-selective electrodes with polymeric sensing membranes. [Figure not available: see fulltext.].
AB - We report a new type of solid-state electrode (type I) of a simple design with polyvinyl chloride membranes based on Mn(III) tetraphenylporphyrin and with graphite as the electronically conducting substrate. Enlargement of the membrane/graphite contact area by soaking graphite in the plasticizer with subsequent conditioning of the electrode at 30 °C allowed us to shorten the time required to achieve steady potential values of the sensors to just 3 days. These electrodes do not require a specially added RedOx system in the transducer layer. Stabilization of the EMF response of type I electrodes is compared to type II electrodes which contain a Cu0/Cu2+ RedOx couple in the transducer layer. Type I sensors are suitable for measuring the salicylate ion concentration in the clinically important concentration range down to 2.5 × 10−4 M with a sensitivity to salicylate ion of −59.0 mV decade−1 in solutions with a high constant background of chloride ions of 0.12 M at pH = 5.3, making this a promising technique for an effective design of solid-contact ion-selective electrodes with polymeric sensing membranes. [Figure not available: see fulltext.].
KW - Graphite
KW - Large membrane/solid-contact area
KW - Metalloporphyrin
KW - Oxygen-containing groups
KW - Salicylate ion
KW - Solid-contact electrode
UR - http://www.scopus.com/inward/record.url?scp=85016631218&partnerID=8YFLogxK
U2 - 10.1007/s10008-017-3575-6
DO - 10.1007/s10008-017-3575-6
M3 - Article
AN - SCOPUS:85016631218
VL - 21
SP - 2269
EP - 2279
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
SN - 1432-8488
IS - 8
ER -
ID: 9339696