Potentiometric sensing utilizing paper-based microfluidic sampling

被引：47

作者：

Cui, Jingwen ^{[1
]}

Lisak, Grzegorz ^{[1
]}

Strzalkowska, Sylwia ^{[2
]}

Bobacka, Johan ^{[1
]}

机构：

[1] Abo Akad Univ, Proc Chem Ctr, Lab Analyt Chem, FIN-20500 Turku, Finland

[2] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

来源：

ANALYST | 2014年 / 139卷 / 09期

关键词：

ION-SELECTIVE ELECTRODES; SOLID-CONTACT; ELECTROCHEMICAL DETECTION; BULK OPTODES; SEPARATION; MEMBRANE; TRANSDUCERS; SENSORS; DEVICES;

D O I：

10.1039/c3an02157b

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：2133 / 2136

页数：4

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