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A Coulter counter [1] [2] is an apparatus for counting and sizing particles suspended in electrolytes. The Coulter counter is the commercial term for the technique known as resistive pulse sensing or electrical zone sensing.
Aug 4, 2020 · Coulter counter instruments give rapid, reliable, and accurate cell counting readings. These instruments have changed the dynamics of cell counting in medical and research industries, especially in the hematology wing.
The technology was principally developed to count blood cells quickly by measuring the changes in electrical conductance as cells suspended in a conductive fluid passed through a small orifice. Presently, over 98% of automated cell counters incorporate this technology, which is referred to as the Coulter Principle.
Apr 4, 2023 · A Coulter Counter is an instrument that can count and size the cells in an electrolyte to provide valuable information for researchers. For example, the number of cells of a certain type in a blood sample can provide clues to the type of disease that a patient is suffering.
Jun 27, 2018 · A Coulter counter is a device that is used to measure the number of cells in a certain volume of a sample suspension. The counter achieves this enumeration by monitoring the decrease in electrical conductivity that occurs when the cells pass through a small opening in the device.
Feb 2, 2011 · Coulter Counter is a registered trademark of Coulter Corporation for a device which provides particle count and size measurement using the so-called electrical sensing zone (or Coulter) principle.
This machine, called a Coulter counter, produced red blood cell counts that were 10 times more accurate in one-third of the time it took for technicians to perform blood counts through microscopes. Similar machines are used today, not only to automate blood cell counts, but to measure particle sizes and numbers in a wide variety of applications.
