Hematology reagent and methods

Details Hematology reagent and methods Hematology reagent and methods

2007-07-24

2007-07-24

Lankford, Jr., Leon B. (Department: 1651)

Chemistry: analytical and immunological testing

Composition for standardization, calibration, simulation,...

Preparation composition

C435S040500, C435S002000, C435S004000

Reexamination Certificate

active

10699502

ABSTRACT:
A reagent system is provided for substantially lysing red blood cells in a whole blood sample prior to leukocyte analysis, which system includes a first reagent for substantially lysing the red blood cells in the whole blood sample, and a second reagent for quenching the activity of the first reagent. The first reagent is formulated to include an autoclaved saponin compound and an acid selected from the group consisting of a halogenated carboxylic acid, a phosphoric acid and a combination thereof. The second reagent includes a base and has a pH value of about 8 to 12. Also provided is a method of lysing the red blood cells and stabilizing white blood cells present in a sample of whole blood.

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