Polyacrylate microspheres composite for all-solid-state reference electrodes

The Analyst
Anna KisielAgata Michalska

Abstract

A novel concept is proposed for the encapsulation of components within polyacrylate microspheres, prior to their incorporation into a membrane phase. Thus finer and better controlled dispersion of heterogeneous membrane components can be achieved. This concept was verified by using a poly(n-butyl acrylate) membrane-based reference electrode as an example. In this example the proper dispersion of solid constituents of the heterogeneous membrane and prevention of their leakage are both of primary importance. Potassium chloride-loaded poly(n-butyl acrylate) microspheres were prepared and then left in contact with silver nitrate to convert some of the KCl into AgCl. The material obtained was introduced into a poly(n-butyl acrylate) membrane. The reference electrode membranes obtained in this way were characterized with much more stable potential (both in different electrolytes and over time) compared with electrodes prepared by the direct introduction of KCl and AgCl to the membrane.

References

Nov 15, 2005·The Analyst·Anna KisielKrzysztof Maksymiuk
Nov 25, 2006·The Analyst·Maria Jose Ruedas-Rama, Elizabeth A H Hall
May 22, 2008·Analytical Chemistry·Benjamin J PrivettMark H Schoenfisch
Jan 6, 2009·Trends in Analytical Chemistry : TRAC·Eric Bakker, Ernö Pretsch
Jul 29, 2009·Talanta·Agata MichalskaKrzysztof Maksymiuk

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Citations

Feb 15, 2011·Analytical and Bioanalytical Chemistry·F Xavier Rius-RuizF Xavier Rius
Dec 4, 2013·Analytical Chemistry·Emilia WoźnicaAgata Michalska
Apr 8, 2014·Analytica Chimica Acta·Tomàs GuinovartFrancisco J Andrade
Sep 13, 2012·Talanta·Arnaud Emmanuel MusaJörg Peter Kutter
Jun 2, 2011·Analytical Chemistry·F Xavier Rius-RuizF Xavier Rius

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Methods Mentioned

BETA
X-ray
scanning electron microscopy

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