Method for quantitatively measuring white blood cells esterase a

Details Method for quantitatively measuring white blood cells esterase a Method for quantitatively measuring white blood cells esterase a

1996-04-12

1998-07-07

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Biological cellular material tested

436 66, 436904, 436175, 436164, G01N 33493

Patent

active

057767807

ABSTRACT:
Detecting white blood cells in an aliquot of urine by placing the aliquot of urine in an automated analyzer sampling cup, transferring the urine to a cuvette and injecting at least one reagent composition. The reagent composition contains a buffer, an activator such as benzalkonium chloride, an indicator and at least one substance to remove substances in the urine that cause interference with colorimetric photometry. The aliquot of urine is read in accordance with a preprogrammed code at a monochromatically specified wavelength to compare absorbance of the patient's urine with a known standard containing a known concentration of white blood cells.

REFERENCES:
patent: 3907503 (1975-09-01), Betts et al.
patent: 4645842 (1987-02-01), Corey
patent: 4704460 (1987-11-01), Corey
patent: 4755472 (1988-07-01), Ismail et al.
patent: 4758508 (1988-07-01), Schnabel et al.
patent: 5128265 (1992-07-01), Meiattini

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