hemocytometer


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hemocytometer

 [he″mo-si-tom´ĕ-ter]
a device used in manual blood cell counts consisting of a counting chamber of uniform depth that is covered by a ruled cover glass so that the region under each ruled square contains a known volume of the diluted blood specimen.

he·mo·cy·tom·e·ter

(hē'mō-sī-tom'ĕ-tĕr),
An apparatus for estimating the number of blood cells in a quantitatively measured volume of blood; it consists of a glass pipette with an ampulla for collecting and diluting the blood, and a counting chamber marked in squares.
[hemo- + G. kytos, cell, + metron, measure]

he·mo·cy·tom·e·ter

(hē'mō-sī-tom'ĕ-tĕr)
An apparatus for estimating the number of blood cells in a quantitatively measured volume of blood; consists of a glass pipette with an ampulla for collecting and diluting the blood, and a counting chamber marked in squares.
Synonym(s): hemacytometer, haemocytometer.
[hemo- + G. kytos, cell, + metron, measure]

Hemocytometer

An instrument used to count platelets or other blood cells.
Mentioned in: Platelet Count
References in periodicals archive ?
Fuentes, "Cell counting with a hemocytometer; Hemocytometer calculation tutorial," Hemocytometer, 2018, https:// www.hemocytometer.org/hemocytometer-calculation-tutorial/.
A hemocytometer was used to determine the number of trophozoites/mL, and the doubling time was calculated by linear regression [23].
Cells were counted with a hemocytometer to choose the inoculum volume, between 15 and 30 ml of broth for approximately [10.sup.8] cells.
The protocol was designed to validate an automated method for MSC counting by "NucleoCounter[R]" system (ChemoMetec, Allerod, Denmark) in terms of accuracy, precision, and linearity in comparison to the manual cell count method by the hemocytometer (Burker chamber).
To count pollen the sample was dissociated with the vortex and a 10 ul aliquot (N = 3) was taken and placed on a hemocytometer slide.
For inoculation a spore suspension was prepared using sterile distilled water in a Newbauer chamber (American Optical Co Hemocytometer 0.1 mm deep).
THECs were performed using a Malassez hemocytometer after a 1:200 dilution with an eosinophil dilution liquid containing phloxine B.
Cell harvesting was performed using trypsin and counting the cells using a hemocytometer in the presence of trypan blue using the procedure described in Protocols S1 (1) and S2 (1).
The number of cells in the alginate solution was counted by a Neubauer improved hemocytometer. The calcium alginate bead was prepared as described above by using a 20 g [L.sup.-1] Ca[Cl.sub.2] solution as hardening cation.
Total cell counts were quantified from PLF using a hemocytometer. Subsequently, PLF was centrifuged at 1400 xg for 10 min, and the supernatant was collected in sterile tubes and stored at -20[degrees]C until determination of cytokines, while the pellet was used to perform differential cell counts on Giemsa-stained cytospin preparations (Diff-Quick) by direct counting on a microscope.
Cell viability was also examined by counting the live and dead cells using a hemocytometer [6].
Blood was collected from the orbital artery 7 days after irradiation, and the WBC were counted using a hemocytometer after the blood was diluted.