Immunoassay
US4600690A · kind A · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1983 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | Jul 19, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/804
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
There is disclosed a method for immunoassay and/or competitive binding assay, wherein an excess amount of unlabeled antigen is added after the start of the reaction between the labeled ligand, the unlabeled ligand, and the binding agent or antibody, to saturate or flood the antibody binding sites. This provides increased sensitivity allowing for more reliable and precise measurements of ligands including antigens than heretofore. The present method extends the scope of applicability of competitive binding technique for assay of hormones, drugs and other compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.