Reference electrode
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Feb 8, 2001
filing date -
Jun 4, 1998
priority date (Note) -
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Abstract
The reference electrode comprises an electrode plug and a chamber (16) closed at the rear containing an electrolyte. The chamber (16) has an aperture (23) covered by a membrane (26) of a material permitting diffusion of ions therethrough, but whose surface is closed for proteins and similar macromolecular substances. A diffusion tight diaphragm element (27) having a through-going orifice (30) located radially within the aperture is situated on the outer side of the ion diffusion membrane (26) relative to the chamber, and the orifice (30) is smaller than the aperture (23).
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