What question did this study set out to answer?

To develop a low-cost, solid-state amperometric sensor for aqueous ammonia detection using inkjet-printed polyaniline nanoparticles on carbon electrodes.

January 1, 2008The Analyst

An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode

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Authors

KCKarl CrowleyHexagon (United Kingdom)EOEimer O’MalleyRoyal College of Surgeons in Ireland AMAoife MorrinDublin City University

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Implication

Experimental study demonstrates sensitive amperometric detection of aqueous ammonia using inkjet-printed polyaniline electrodes, indicating a scalable method for wastewater monitoring.

Key Points

To develop a low-cost, solid-state amperometric sensor for aqueous ammonia detection using inkjet-printed polyaniline nanoparticles on carbon electrodes.
Fabricated sensors by inkjet printing dodecylbenzene sulfonate-doped polyaniline nanoparticles onto screen-printed carbon paste electrodes.
Optimized electrode response by assessing print layer quantity and operating pH conditions.
Assessed performance, day-to-day stability, and refrigerant wastewater interferents in a flow injection system using amperometric detection at -0.3 V vs. Ag/AgCl.
The sensor operated optimally at near-neutral pH with four printed polyaniline nanoparticle layers.
Amperometric testing achieved high reproducibility with a relative standard deviation below 5%.
The sensor exhibited an experimental limit of detection of 20 µM and a theoretical limit of detection of 3.17 µM (0.54 ppm).

Cite This Study

Crowley et al. (2008) studied this question.

synapsesocial.com/papers/6a85a1c702a1bc3ea31e6cdb https://doi.org/10.1039/b716154a

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Implication

Experimental study demonstrates sensitive amperometric detection of aqueous ammonia using inkjet-printed polyaniline electrodes, indicating a scalable method for wastewater monitoring.

An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode

Discussion

Member takes

Implication

Key Points

Cite This Study

An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode

Discussion

Member takes

Implication

Key Points

Cite This Study

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