Standard solution for simultaneously calibrating a plurality of ion electrodes
US4626512A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1985 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | May 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/108331
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A standard solution for simultaneously calibrating a plurality of ion electrodes for determining a plurality of ion electrodes for determining a plurality of ions including at least potassium ions and calcium ions in blood, the improvement wherein the concentration of the standard solution for a potassium ion electrode and a calcium ion electrode is adjusted in accordance with the following equations: ##EQU1## As for potassium ion, EQU C=C.sub.o .multidot.10.sup.-.DELTA.E/60 As for calcium ion, EQU C=C.sub.o .multidot.10.sup.-.DELTA.E/30 As for potassium ion, EQU A=-0.130 to -0.065 As for calcium ion, EQU A=-0.240 to -0.172 wherein PA0 E: is the potential difference when an ionic strength of 150 mM is used as the standard; PA0 .mu.: is the ionic strength; PA0 C.sub.o : is the calibrated concentration; PA0 C: is the concentration of reagent added; and PA0 A: is the correction factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.