JPS6428557A - Electrode bias apparatus for biosensor - Google Patents
Electrode bias apparatus for biosensorInfo
- Publication number
- JPS6428557A JPS6428557A JP62184840A JP18484087A JPS6428557A JP S6428557 A JPS6428557 A JP S6428557A JP 62184840 A JP62184840 A JP 62184840A JP 18484087 A JP18484087 A JP 18484087A JP S6428557 A JPS6428557 A JP S6428557A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrode
- forward bias
- concentration
- glucose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To maintain a measuring accuracy at a high level, by a method wherein a forward bias feeder for preservation is arranged to supply a fine forward bias less than enough for oxidizing and reducing reaction with respect to an electrode and an object material is measured immediately even when the activity of the electrode is preserved for a long time. CONSTITUTION:A main constant voltage source 1 for applying a forward bias voltage for measuring concentration and a constant voltage source 2 for preservation are arranged to supply a forward bias voltage selectively to a working electrode 4 comprising Pt through a selector switch 3. Here, when measuring the concentration of glucose, the switch 3 is operated to connect a voltage 4 to an inversion input terminal 8a of an operational amplifier 8 for current- voltage conversion by switching while a voltage signal of 0V is supplied from a backward bias supply terminal 12 to apply a fine forward bias voltage between the electrodes 4 and 5 with the electrode 5 earthed. Here, when a solution to be measured is dropped on an enzyme electrode, a signal corresponding to the concentration of glucose is outputted. Then, a voltage signal alone corresponding to current is extracted and a primary differentiation is performed to detect a peak value thereof thereby obtaining a glucose concentration signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184840A JPS6428557A (en) | 1987-07-23 | 1987-07-23 | Electrode bias apparatus for biosensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184840A JPS6428557A (en) | 1987-07-23 | 1987-07-23 | Electrode bias apparatus for biosensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428557A true JPS6428557A (en) | 1989-01-31 |
Family
ID=16160233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62184840A Pending JPS6428557A (en) | 1987-07-23 | 1987-07-23 | Electrode bias apparatus for biosensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985130A (en) * | 1996-04-04 | 1999-11-16 | Matsushita Electric Industrial Co., Ltd. | Method for quantifying substrate |
-
1987
- 1987-07-23 JP JP62184840A patent/JPS6428557A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985130A (en) * | 1996-04-04 | 1999-11-16 | Matsushita Electric Industrial Co., Ltd. | Method for quantifying substrate |
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