hemacytometer


Also found in: Dictionary, Medical, Wikipedia.

hemacytometer

[‚hē·mə·sī′täm·əd·ər]
(pathology)
Mentioned in ?
References in periodicals archive ?
Using Cell-Chex Auto, lab leaders can improve efficiency, maintain testing accuracy, and decrease turnaround times for most body fluid samples by eliminating the need for manual hemacytometer testing by one or more laboratorians.
Total viable cell counts were determined in a hemacytometer using the Trypan blue exclusion method.
The concentration of conidia was adjusted with sterile saline to a final concentration of 8 x 10 [sup]4 CFU/ml and 8 x 10 [sup]5 colony-forming unit (CFU)/ml by hemacytometer counts.
With the advent of the first single automated blood cell counter, manual hemacytometer blood cells counts for erythrocyte enumeration were replaced.
Using sterile 0.1% Tween-80 solutions, 5 concentrations were prepared based on counts in a hemacytometer, i.e., 1 x [10.sup.5], 1 x [10.sup.6], 1 x [10.sup.7], 1 x [10.sup.8], and 7.2 x [10.sup.8] spores per mL.
The dishes were incubated in the dark at 16[degrees]C for 3 days, then chilled to 4[degrees]C for half an hour to induce sporulation, and then incubated for 1 hour at room temperature before quantifying zoospores with a hemacytometer (Hausser Scientific, Horsham, PA).
A 200-cell manual differential count and a hemacytometer white blood cell count using the Natt and Herricks procedure were performed by the same technologist for all samples.
For this purpose, they were added 20 mL of sterile distilled water in each box of 4 days of incubation, with a sterile glass spatula conidia spores were recollected and deposited in a glass beaker (KIMAX[R]), to this suspension was added a drop of liquid soap as surfactant and it was taken two samples of 10 iL to be evaluated in a hemacytometer (MARIENFELD [TM]) and a compound microscope (Leica Inc., USA).
Seminal parameters were defined as follows (World Health Organization, 1999): Sperm density was measured by hemacytometer count at A-200 magnification.
Various methods for determining inoculum concentration were used including plate counts, turbidity measurements, Most Probable Number (MPN) and hemacytometer cell counts.
After discarding the supernatant and re-suspending the chondrocytes in a mixture of 10% FBS Media (500 mL 1:1 DMEM:F12, 50 mL FBS, 5mL 100x Amphotericin B, 5mL Pen-Strep), cells were counted using a hemacytometer.
Cell Count: At the end of each 24, 48, and 72 hour incubation period, cell counts were performed using standard hemacytometer techniques.