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Pregled bibliografske jedinice broj: 840309

A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications


Samardžić, Mirela; Galović, Olivera; Hajduković, Mateja; Sak-Bosnar, Milan
A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications // Talanta, 162 (2017), 316-323 doi:10.1016/j.talanta.2016.10.041 (međunarodna recenzija, članak, znanstveni)


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Naslov
A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications

Autori
Samardžić, Mirela ; Galović, Olivera ; Hajduković, Mateja ; Sak-Bosnar, Milan

Izvornik
Talanta (0039-9140) 162 (2017); 316-323

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
carbon powder ; anionic surfactant sensor ; potentiometric titration ; industrial products ; effluents

Sažetak
A new high-sensitivity potentiometric sensor for anionic surfactants was fabricated using the dimethyldioctadecylammonium-tetraphenylborate (DDA-TPB) ion associate as an ionophore that was incorporated into a liquid PVC membrane. Carbon powder was used for immobilization of the ionophore in the membrane, thus significantly reducing its ohmic resistance and reducing its signal drift. The sensor exhibits a sub-Nernstian response for both dodecylbenzenesulfonate (DBS) and dodecyl sulfate (DS) in H2O (55.3 and 58.5 mV/decade of activity, respectively) in a range between 3.2×10−7 and 4.6×10−3 M for DS and 2.5×10−7 and 1.2×10−3 M for DBS. The sensor also exhibited a sub-Nernstian response for DS and DBS in 10 mM Na2SO4 (55.4 and 57.7 mV/decade of activity, respectively) between 2.5×10−7 and 4.6×10−3 M for DS and 1.5×10−7 and 8.8×10−4 M for DBS. The detection limits for DS and DBS in H2O were 2.5×10−7 and 2.0×10−7 M and in 10 mM Na2SO4 the detection limits were 2.5×10−7 and 1.2×10−7 M, respectively. The response time of the sensor was less than 5 s for changes at higher concentration levels (above 1×10−4 M) in both water and 10 mM Na2SO4. At lower concentrations (below 1×10−5 M) the response times were 8 and 6 s in water and 10 mM Na2SO4, respectively. The signal drift of the sensor was 1.2 mV/hour. The new carbon-based sensor exhibited excellent selectivity performance for DS over almost all of the anions commonly present in commercial formulations and it was successfully employed as an end-point detector in potentiometric titrations of anionic surfactants in a pH range from 3 to 12. Three-component mixtures containing sodium alkanesulfonate (C10, C12 and C14) were successfully differentially titrated.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-9060 - Primjena nanomaterijala u izradi potenciometrijskih tenzidnih senzora za primjenu u industriji i zaštiti okoliša (Milan Sak-Bosnar, )

Ustanove
Sveučilište u Osijeku - Odjel za kemiju

Citiraj ovu publikaciju

Samardžić, Mirela; Galović, Olivera; Hajduković, Mateja; Sak-Bosnar, Milan
A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications // Talanta, 162 (2017), 316-323 doi:10.1016/j.talanta.2016.10.041 (međunarodna recenzija, članak, znanstveni)
Samardžić, M., Galović, O., Hajduković, M. & Sak-Bosnar, M. (2017) A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications. Talanta, 162, 316-323 doi:10.1016/j.talanta.2016.10.041.
@article{article, year = {2017}, pages = {316-323}, DOI = {10.1016/j.talanta.2016.10.041}, keywords = {carbon powder, anionic surfactant sensor, potentiometric titration, industrial products, effluents}, journal = {Talanta}, doi = {10.1016/j.talanta.2016.10.041}, volume = {162}, issn = {0039-9140}, title = {A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications}, keyword = {carbon powder, anionic surfactant sensor, potentiometric titration, industrial products, effluents} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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