Lowering the limit of detection of ion-selective membranes backside contacted with a film of poly(3-octylthiophene)

Why ammonium detection is particularly challenging but insightful with ionophore-based potentiometric sensors – an overview of the progress in the last 20 years

“…Although this electrode is not based on a potentiometric readout, it represents a clear example on how electrodes based on ISMs (in this case, NH 4 + ionophore in a Nafion-based environment) can be investigated under a dynamic electrochemical protocol and therefore can yield a different selectivity dimension. 87,88 In the inspected paper, it would be worthwhile to compare the reported results with those observed with regular potentiometric ISEs based on the same ionophore. Suzuki and collaborators reported 19-21-membered crown ethers having decalino subunits in the macrocyclic system.…”

Polymeric membrane ion-selective electrodes with anti-biofouling properties by surface modification of silver nanoparticles

“…Especially in environmental monitoring, such electrodes play an important role in real-time and accurate analysis of some environmental parameters, such as pH, the concentrations of Ca 2+ , NH 4 + , and carbonate [6][7][8]. Extensive attentions have been attracted to develop sensors with reliable performances [9][10][11]. However, note that, when these sensors are applied in the complex environmental samples (e.g., wastewater), they may suffer from problems of biofouling which refer to the undesirable attachment of microorganisms and their development into biofilms on sensors' surface [12].…”

Electrochemical Detection of Electrolytes Using a Solid-State Ion-Selective Electrode of Single-Piece Type Membrane

“…Commonly used solid contact materials include high-molecular-weight conductive polymers such as polypyrroles [32], poly(3-octylthiophene) [33], and poly(3,4-ethylenedioxythiophene) (PEDOT) [34]. Nanomaterials used as solid contact materials include carbon nanotubes [17], graphene [35], platinum nanoparticles [36], and noble metal nanostructures [37].…”