Potassium-Selective Electrodes with Stable and Geometrically Well-Defined Internal Solid Contact Based on Nanoparticles of Polyaniline and Plasticized Poly(vinyl chloride)

2007 ◽  
Vol 79 (22) ◽  
pp. 8571-8577 ◽  
Author(s):  
Tom Lindfors ◽  
Harri Aarnio ◽  
Ari Ivaska
Keyword(s):  
Vinyl Chloride ◽  
Solid Contact ◽  
Poly Vinyl Chloride

scholarly journals Potentiometric Carboxylate Sensors Based on Carbazole-Derived Acyclic and Macrocyclic Ionophores

Chemosensors ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 4
Author(s):  
Ville Yrjänä ◽  
Indrek Saar ◽  
Mihkel Ilisson ◽  
Sandip A. Kadam ◽  
Ivo Leito ◽  
...  
Keyword(s):  
Detection Limit ◽  
Vinyl Chloride ◽  
Anion Exchanger ◽  
Linear Range ◽  
Ph Sensitivity ◽  
Ion Selective Electrodes ◽  
Solid Contact ◽  
Response Characteristics ◽  
Potentiometric Response ◽  
Poly Vinyl Chloride

Solid-contact ion-selective electrodes with carbazole-derived ionophores were prepared. They were characterized as acetate sensors, but can be used to determine a number of carboxylates. The potentiometric response characteristics (slope, detection limit, selectivity, and pH sensitivity) of sensors prepared with different membrane compositions (ionophore, ionophore concentration, anion exchanger concentration, and plasticizer) were evaluated. The results show that for the macrocyclic ionophores, a larger cavity provided better selectivity. The sensors exhibited modest selectivity for acetate but good selectivity for benzoate. The carbazole-derived ionophores effectively decreased the interference from lipophilic anions, such as bromide, nitrate, iodide, and thiocyanate. The selectivity, detection limit, and linear range were improved by choosing a suitable plasticizer and by reducing the ionophore and anion exchanger concentrations. The influence of the electrode body’s material upon the composition of the plasticized poly(vinyl chloride) membrane, and thus also upon the sensor characteristics, was also studied. The choice of materials for the electrode body significantly affected the characteristics of the sensors.

All-solid-state sodium-selective electrode based on a calixarene ionophore in a poly(vinyl chloride) membrane with a polypyrrole solid contact

1992 ◽  
Vol 64 (21) ◽  
pp. 2496-2501 ◽  
Author(s):  
Aodhmar. Cadogan ◽  
Zhiqiang. Gao ◽  
Andrzej. Lewenstam ◽  
Ari. Ivaska ◽  
Dermot. Diamond
Keyword(s):  
Solid State ◽  
Vinyl Chloride ◽  
Solid Contact ◽  
Selective Electrode ◽  
Poly Vinyl Chloride

scholarly journals The Water Uptake of Plasticized Poly(vinyl chloride) Solid-Contact Calcium-Selective Electrodes

2011 ◽  
Vol 23 (9) ◽  
pp. 2156-2163 ◽  
Author(s):  
Tom Lindfors ◽  
Fredrik Sundfors ◽  
Lajos Höfler ◽  
Róbert E. Gyurcsányi
Keyword(s):  
Vinyl Chloride ◽  
Water Uptake ◽  
Solid Contact ◽  
Poly Vinyl Chloride
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