Method for detection of contaminants
US5736351A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1997 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Jan 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/968
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for determining the presence and concentration of total microbial contamination or the presence and concentration of a specific microbial species on a surface is described. The method consists of a means of a collection device and fluid for removing the microbes from the surface and suspending them in a fluid phase. An aliquot of the fluid phase is introduced into a disposable test ticket which allows filtration of the sample to remove extraneous substances including somatic cells, and concentration of the microbes. The total concentration of microbes is determined by adding a somatic and bacterial releasing reagent to a disposable test device which comprises a membrane containing the luminescent reagents luciferin and luciferase, and introducing the disposable test device into a luminometer that can read the luminescence from the underside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.