Paper-Based Reference Electrode And Potentiometric Ion Sensing
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United States of America Patent
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Feb 4, 2016
app pub date -
Mar 3, 2014
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Mar 15, 2013
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Abstract
Microfluidic, electrochemical devices are described. The microfluidic, electrochemical device may include a sample zone on a first porous, hydrophilic layer, a reference zone and a microfluidic channel, wherein the microfluidic channel provides for predominantly diffusive fluid communication between the sample zone and the reference zone; (therefore realizing a similar function of a reference electrode), a fluid-impermeable material that defines each of the sample zone, reference zone and microfluidic channel, a first electrode in fluid communication with the sample zone and a second electrode in fluid communication with the reference zone. Also described are microfluidic, electrochemical devices containing an ion-selective membrane for potentiometric ion sensing.
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