Analytical quality solid-state composite reference electrode manufactured by injection moulding

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Kim Granholm, Zekra Mousavi, Tomasz Sokalski, Andrzej Lewenstam
Förläggare: SPRINGER
Publiceringsår: 2014
Tidskrift: Journal of Solid State Electrochemistry
Tidskriftsakronym: J SOLID STATE ELECTR
Volym: 18
Nummer: 3
Artikelns första sida, sidnummer: 607
Artikelns sista sida, sidnummer: 612
Antal sidor: 6
ISSN: 1432-8488
eISSN: 1433-0768


Abstrakt

An injection moulding method was used for fabricating solid-state reference electrodes (Ag/AgCl type) based on a polymer/inorganic salt composite. In this method, a silver/silver chloride wire was placed inside a mould into which the mixture of polymer and inorganic salt was injected. The obtained solid-state composite reference electrodes were extensively tested to study the influence of different parameters such as solution composition, the concentrations and mobility of ions and pH on the potential stability of the electrodes. These experiments revealed that the composite reference electrodes are insensitive to the matrix effect, have excellent potential readings stability and considerably reduced leakage of inorganic salt. The composite reference electrodes were compared favourably to high-quality commercial reference electrodes. It was concluded that the composite reference electrodes obtained by injection moulding are of analytical quality allowing for continuous, prolonged and intensive usage.


Nyckelord

Maintenance-free sensor, Potentiometry, Reference electrode, Solid contact

Senast uppdaterad 2020-22-01 vid 02:57