Composition and test device for determining the presence of leukocytes, esterase and protease in a test sample
US4657855A · kind A · utility
29Cited by
3References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1984 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Apr 6, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/805
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A composition for determining the presence of leukocytes, esterase or protease in a test sample. The composition comprises an ester having the structure ##STR1## in which: A is an N-blocked-amino acid residue or an N-blocked-peptide residue, X is O, S or NR', R is aryl, or lower alkyl, R* is H, or lower alkyl, and R' is H, lower alkyl or aryl; and a suitable buffer substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.