Reference electrode, salt bridge and ionic concentration...

Details Reference electrode, salt bridge and ionic concentration... Reference electrode, salt bridge and ionic concentration...

2006-05-12

2009-12-08

Bell, Bruce F (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S416000, C204S418000, C204S419000, C204S420000, C204S433000

Reexamination Certificate

active

07628901

ABSTRACT:
The present claimed invention is to provide a reference electrode wherein variations of a potential difference at a liquid junction can be removed almost completely, contamination of a sample solution can be minimized, a frequency to supply and replace an internal solution is lessened, the liquid junction is prevented from being clogged, high durability for a long term can be maintained and a measurement with high accuracy can be conducted, and comprises an internal electrode21, an internal solution22that makes a contact with the internal electrode21and a liquid junction23that continues into the internal solution22, wherein the liquid junction23is made by the use of a gelled hydrophobic ionic liquid.

REFERENCES:
patent: 4002547 (1977-01-01), Neti et al.
patent: 4913793 (1990-04-01), Leonard
patent: 2004/0217017 (2004-11-01), Kidwell
patent: 2005/0133369 (2005-06-01), Sovrano et al.
patent: 11-258197 (1999-09-01), None

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