Low-level boron detection and measurement
US6884356B2 · kind B2 · utility
14Cited by
5References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2001 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/90
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus (50) are disclosed for accurately measuring low concentrations of boron in deionized water utilizing the chemical reaction of boric acid with a polyol by injecting very small plugs of concentrated polyol into streams of boron containing and non-boron containing water samples to produce an ionized acids product, and then measuring the conductivity difference (delta conductivity), corrected for interfering or extraneous factors which can effect conductivity, between such boron containing and non-boron containing samples using a conductivity and temperature detector (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.