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The hemocytometer (or haemocytometer, or Burker's chamber) is a counting-chamber device originally designed and usually used for counting blood cells. [ 1 ] The hemocytometer was invented by Louis-Charles Malassez and consists of a thick glass microscope slide with a rectangular indentation that creates a precision volume chamber.
Cell counting is any of various methods for the counting or similar quantification of cells in the life sciences, including medical diagnosis and treatment.It is an important subset of cytometry, with applications in research and clinical practice.
Through the work of Karl von Vierordt, Louis-Charles Malassez, Karl Bürker and others blood cell concentration could by the late 19th century be accurately measured using a blood cell counting chamber, the hemocytometer, and an optical microscope. [3] [4] Until the 1950s the hemocytometer was the standard method to count blood cells. [5]
A complete blood count (CBC), also known as a full blood count (FBC), is a set of medical laboratory tests that provide information about the cells in a person's blood.The CBC indicates the counts of white blood cells, red blood cells and platelets, the concentration of hemoglobin, and the hematocrit (the volume percentage of red blood cells).
Determining the viable cell count is important for calculating dilutions required for the passaging of cells, as well as determining the size and number of flasks needed during growth time. It is also vital when seeding plates for assays, such as the plaque assay , [ 2 ] because the plates need a known number of live replicating cells for the ...
Hematology analyzers (also spelled haematology analysers in British English) are used to count and identify blood cells at high speed with accuracy. [1] [2] [3] During the 1950s, laboratory technicians counted each individual blood cell underneath a microscope.
used in full tissue experiments, for example using guinea pig ileum mainly used in pharmacology for application of drugs to these tissues. Sahli Haemoglobinometer: an old but rapid and simple method of hemoglobin estimation in the laboratories. Presently used in some places where sophisticated optical instruments are not available Haemocytometer
The solution destroys the red blood cells and platelets within a blood sample (acetic acid being the main lyzing agent), and stains the nuclei of the white blood cells, making them easier to see and count. [1] Türk's solution is intended for use in determining total leukocyte count in a defined volume of blood.