Compensated reference liquid
US4410631A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Jun 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reference liquid system for use with a chemical analyzer that has a plurality of ion selective electrodes comprises a plurality of reference liquids, each of which has a first salt component such that ions of a first element to be measured are present in a predetermined concentration, a second salt component such that ions of a second element to be measured are present in a predetermined concentration, and an error compensation salt component present in a concentration effective to adjust PA1 (a) the activity coefficient factor and/or PA1 (b) the junction potential factor to reduce the error involved in use of the compensated reference liquid to less than fifty percent of the error involved in use of a corresponding uncompensated reference liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.