Coulter counter


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counter

 [kown´ter]
an instrument or apparatus by which numerical value is computed; in radiology, a device for enumerating ionizing events.
Coulter counter an automated instrument for performing blood counts, based on the principle that cells are poor electrical conductors compared with saline solution.
Geiger counter (Geiger-Müller counter) a radiation counter using a gas-filled tube that indicates the presence of ionizing particles. It is very sensitive to β particles but relatively insensitive to γ and x-rays.
scintillation counter a device for detecting ionization events, permitting determination of the concentration of radioisotopes in the body or other substance.

Coulter counter

[kōl′tər]
Etymology: W.H. Coulter, twentieth century American engineer
a trademark for an electric device that rapidly identifies and counts red and white blood cells present in a small specimen of human blood.

Coulter counter

An electronic device for automatic blood cell count and analysis. The demands on haematological laboratories are so great nowadays, that manual methods are impracticable and automation is essential.

Coulter counter

an electronic particle analyser, in which a pair of electrodes detects the effect of a passing particle on the impedance. The counter is used to measure the total cell count in a microbiological sample.

Coulter counter

an instrument that counts particles in a fluid medium by electronic means. Can be calibrated to count cells in milk or a blood sample.
References in periodicals archive ?
4 MDA-MB-453 cells were treated with increasing concentrations of each of the Cimifuga components for 96 h and the number of viable cells determained using a Coulter counter.
The acquisition of Q3DM's leading high throughput cell imaging technologies by the company that pioneered automated cytometry systems with the Coulter Counter over 50 years ago, will accelerate market acceptance of automated microscopy systems and enable Beckman Coulter to capture a significant share of the rapidly developing cell-based imaging research market," said Jeffrey Price, MD, PhD, founder of Q3DM Inc.
They have also been very effective for cell isolation and selection by use of microfiltration or electrical fields, and the popular Coulter counter and flow cytometer have been successfully miniaturized into a chip format (10,11).
Coulter, who developed the Coulter Counter, which revolutionized diagnosis by providing quick, accurate blood information, and C.
The Coulter Counter Model S: This was the original spaghetti factory with six red lights, dueling oscilloscopes, expensive and slippery-when-wet glass reaction chambers, and 20 miles of tubing.