Method and apparatus for detecting particular particulate substance
US4890925A · kind A · utility
21Cited by
1References
64Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
By use of an excitation beam having a wavelength which is equal to, or close to, the sizes of particular particulate substances as the object of analysis, the particulate substances such as an immunoreaction product between an antigen and an antibody or between the antigen and a material supporting the antibody thereon are detected selectively. Very small particles having specific sizes such as rheumatuid factors, cancer specific antigens can be detected with high sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.