Measuring apparatus and method for material or organism inducing PH-change of substrate solution
US6379910B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2333/978
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One end of a thin-tube type solid phase in which a receptor specific for a material or an organism to be measured which can induce a pH-change of substrate solution is immobilized is soaked in a sample solution and then taken out therefrom. The one end of the thin-tube type solid phase is disposed in a measurement cell and a sensing portion of a pH electrode disposed in the measurement cell is in the vicinity of the one end of the thin-tube type solid phase. The measurement cell and the thin-tube type solid phase are filled with a substrate solution so that a reaction takes place. Thereafter, the substrate solution in the thin-tube type solid phase is moved to the sensing portion by a solution feed pump. The output of the pH electrode at this timing is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.