Hematology control compositions for three populations of leukocy

Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Particle count or volume standard or control

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436 15, G01N 3100

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active

047043644

ABSTRACT:
This invention primarily is directed to a hematology reference control solution, the three separate white cell control portions thereof consisting of three types of fixed red cells of determined size distribution for checking the operation of a particle analyzing instrument, including its predetermined lower and upper threshold settings for each class or subclass of leukocytes.
For preparing a human granulocyte analogue, nurse shark erythrocytes are altered and fixed in a chilled solution to simulate in number, size and distribution the granulocytes in human whole blood.
Such a granulocyte analogue is useful as a free-standing reference control, for determination of human granulocytes only, or can be comingled with reference controls for lymphocytes and mononuclear cells for use with multi-parameter instruments to give a trimodal leukocyte reference control, which itself can be included in a multiple-analysis hematology reference control, having components for also determining red blood cell and platelet parameters.

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