Method for enumerating bacterial populations
US5824494A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1995 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Apr 26, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/06
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for determining the number of microorganisms in a liquid sample, including the steps of dividing the liquid sample into a plurality of separate sub-samples, measuring the magnitude of at least one impedance component across each of the sub-samples and determining the number of the sub-samples for which the measured magnitude of the at least one impedance component indicates microorganism growth. The method preferably further includes the steps of applying A.C. voltage at a plurality of frequencies across at least a portion of the sample and measuring the at least one impedance component in response to at least some of the plurality of A.C. frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.