Towards stabilization of the potential response of Mn(III) tetraphenylporphyrin-based solid-state electrodes with selectivity for salicylate ions

Tatiana A. Skripnikova, Anna A. Starikova, Galina I. Shumilova, Yuri E. Ermolenko, Andrey A. Pendin, Yulia G. Mourzina

Research output

2 Citations (Scopus)

Abstract

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.].

Original languageEnglish
Pages (from-to)2269-2279
Number of pages11
JournalJournal of Solid State Electrochemistry
Volume21
Issue number8
DOIs
Publication statusPublished - 1 Aug 2017
Externally publishedYes

Fingerprint

salicylates
Salicylates
Stabilization
stabilization
selectivity
Graphite
Ions
solid state
Electrodes
electrodes
graphite
ions
membranes
Membranes
Transducers
transducers
ion selective electrodes
polyvinyl chloride
Plasticizers
plasticizers

Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Electrochemistry

Cite this

Skripnikova, Tatiana A. ; Starikova, Anna A. ; Shumilova, Galina I. ; Ermolenko, Yuri E. ; Pendin, Andrey A. ; Mourzina, Yulia G. / Towards stabilization of the potential response of Mn(III) tetraphenylporphyrin-based solid-state electrodes with selectivity for salicylate ions. In: Journal of Solid State Electrochemistry. 2017 ; Vol. 21, No. 8. pp. 2269-2279.
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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.

In: Journal of Solid State Electrochemistry, Vol. 21, No. 8, 01.08.2017, p. 2269-2279.

Research output

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

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JF - Journal of Solid State Electrochemistry

SN - 1432-8488

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ER -