Reference electrode assembly

Details Reference electrode assembly Reference electrode assembly

G - Physics

01

N

G01N 27/333 (2006.01) G01N 27/28 (2006.01) G01N 27/30 (2006.01) G01N 27/31 (2006.01) G01N 27/401 (2006.01)

Patent

CA 2184954

A reference electrode assembly having a constrained-diffusion liquid junction between a liquid junction solution and a sample solution having separate flow paths is disclosed. The assembly consists of a flow cell having attached to it a constraint comprising a region of porous material permeable to water and salts, a remote reservoir for holding a liquid junction solution, a means for moving the liquid junction solution from the reservoir to the constraint, and a reference contact region. Such a reference electrode device is useful in pH and/or ion selective electrode potentiometric sensors and is suitable for use in a mini-integrated electrochemical analyzer.

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