Metal chelates as membrane active components in liquid-state ion-selective electrodes. Factors affecting the electrode properties and stability
✍ Scribed by Krzysztof Ren
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 531 KB
- Volume
- 273
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
The apphcablllty of solvents m hquld-membrane Ion-selectwe electrodes usmg chelate metal complex increases with mcrease m thev dlelectnc constant It was found that the propertres of the electrodes are consrderably affected by lmpuntles present m the sohrent and m the electroactwe compound The reason for the limited stab&y of ion-selective electrodes mth hqmd membranes 1s penetration of water mto the membrane and its adsorption on the surface of capdlary walls The stabdlty of electrodes may be unproved by counteracting water adsorption by hydrophoblzatlon of the pore surface of the porous membrane carrier Kkywordr Ion-selectwe electrodes, Lquld-membrane electrodes, Membrane electrodes, Metal chelates