Method for quantitatively measuring white blood cells esterase activity in urine

摘要

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.