Global Patent Index - EP 1917521 A1

EP 1917521 A1 20080507 - REFERENCE ELECTRODE SYSTEM FOR A POTENTIOMETRIC SENSOR AND POTENTIOMETRIC SENSOR COMPRISING SUCH A REFERENCE ELECTRODE SYSTEM

Title (en)

REFERENCE ELECTRODE SYSTEM FOR A POTENTIOMETRIC SENSOR AND POTENTIOMETRIC SENSOR COMPRISING SUCH A REFERENCE ELECTRODE SYSTEM

Title (de)

REFERENZELEKTRODENANORDNUNG FÜR EINEN POTENTIOMETRISCHEN SENSOR UND POTENTIOMETRISCHER SENSOR MIT REFERENZELEKTRODENANORDNUNG

Title (fr)

SYSTEME D'ELECTRODE DE REFERENCE POUR CAPTEUR POTENTIOMETRIQUE, ET CAPTEUR POTENTIOMETRIQUE COMPRENANT UN TEL SYSTEME D'ELECTRODE DE REFERENCE

Publication

EP 1917521 A1 20080507 (DE)

Application

EP 06777765 A 20060713

Priority

  • EP 2006064217 W 20060713
  • DE 102005040764 A 20050826

Abstract (en)

[origin: WO2007023031A1] A reference electrode system comprises a container (54), filled with a reference electrolyte; an electric conductor (55) which is in electrical contact to the reference electrolyte in the container for deriving a reference potential; and a salt bridge (56) in a wall of the container. The reference electrode system comprises a second container (58), the salt bridge (56) is arranged in a volume surrounded by the second container, and the second container has a first opening (59) and a second opening (60), both communicating with a volume outside the first and the second container. At least the first opening (59) communicates with a volume surrounding the reference electrode system. A single-rod measuring chain comprises a pH measuring cell and an inventive reference electrode system. A measuring cell glass tube (51) is at least partially surrounded by the first container (54) of the reference electrode system and the pH membrane (52) is disposed outside the second container (58).

IPC 8 full level

G01N 27/403 (2006.01)

CPC (source: EP)

G01N 27/401 (2013.01); G01N 27/4035 (2013.01)

Citation (search report)

See references of WO 2007023031A1

Citation (examination)

US 4477330 A 19841016 - NIELSEN POVL H [DK]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102005040764 A1 20070301; EP 1917521 A1 20080507; WO 2007023031 A1 20070301

DOCDB simple family (application)

DE 102005040764 A 20050826; EP 06777765 A 20060713; EP 2006064217 W 20060713