Potentiometric sensing utilizing paper-based microfluidic sampling

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Jingwen Cui, Grzegorz Lisak, Sylwia Strzalkowska, Johan Bobacka
Publication year: 2014
Journal: Analyst
Journal acronym: ANALYST
Volume number: 139
Issue number: 9
Start page: 2133
End page: 2136
Number of pages: 4
ISSN: 0003-2654
eISSN: 1364-5528


A new approach to potentiometric sensing utilizing paper-based microfluidic sampling is studied in this work. A solid-contact ion-selective electrode and a solid-contact reference electrode are pressed against a filter paper into which the sample solution is absorbed. The filter paper acts simultaneously as a sampling unit and as a sample container during potentiometric sensing. The paper substrates containing standard and sample solutions are disposable, while the sensors are used multiple times. The analytical method presented here opens new possibilities for economically and ecologically sound measurements of ions in various samples.

Last updated on 2020-09-08 at 03:19