Global patent index - EP 1038172 A1

EP 1038172 A1 2000-09-27 - SENSOR DEVICES AND ANALYTICAL METHOD

Title (en)

SENSOR DEVICES AND ANALYTICAL METHOD

Title (de)

SENSOREN UND ANALYTISCHES VERFAHREN

Title (fr)

DISPOSITIFS DE DETECTION ET PROCEDE D'ANALYSE

Publication

EP 1038172 A1 (EN)

Application

EP 98959014 A

Priority

  • GB 9803662 W
  • GB 9726230 A
  • GB 9816909 A

Abstract (en)

[origin: WO9930144A1] Sensor systems and devices with a detecting (especially ion-selective or redox) electrode and reference electrode with the detecting electrode (and preferably both electrodes) covered by a permeable barrier interfacing with samples under examination so that the main bridging contact between the electrodes to complete a measuring circuit is not through the sample. The permeable barrier encloses a liquid zone (e.g. electrolyte) at the electrodes and controls, by restricting diffusion, the passage of analytes and impurities in either direction through the barrier. The main function of the permeable barrier is to slow the rate of diffusion of analyte. More rapid identification of the analyte content in a sample can be facilitated, e.g. by "loading" the liquid zone with analyte or impurity to control diffusion. The strongly preferred method for analyte determination is based on using measurements of the rate of change of the detecting electrode's output potential as analyte diffuses through the barrier.

IPC 1-7 (main, further and additional classification)

G01N 27/40

IPC 8 full level (invention and additional information)

G01N 27/40 (2006.01); G01N 27/403 (2006.01)

CPC (invention and additional information)

G01N 27/4035 (2013.01)

Citation (search report)

See references of WO 9930144A1

Designated contracting state (EPC)

BE DE ES FR GB IT

EPO simple patent family

WO 9930144 A1 19990617; AU 1495299 A 19990628; CA 2313795 A1 19990617; EP 1038172 A1 20000927

INPADOC legal status

2004-01-07 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030701

2000-09-27 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000616

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE ES FR GB IT