Autostainer hematoxylin and methods of use
US10830675B2 · kind B2 · utility
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33Claims
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Key dates
| Filing date | Jun 19, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/302
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure relates to hematoxylin staining formulations and particularly to formulations for use in autostainers. The disclosed compositions were discovered to possess atypical stability under storage while having high stain quality and sufficiently fast staining performance. The disclosed hematoxylin staining compositions include a solvent system, hematoxylin, a chemical oxidant, and a mordant. Illustrative embodiments also have a Cl−/SO4− molar ratio of between about 2.5/1 and about 1/4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.