One of the most rapid methods of determining the number of cells in a suspension is the direct microscopic count. The number of bacteria in a measured volume of liquid is counted using special glass slides, counting chambers, that hold a known volume of liquid (figure 4.11). These can be viewed under the light microscope, and the number of bacteria contained in the liquid can be counted precisely. At least 10 million bacteria (107) per milliliter, however, are required to gain an accurate estimate. Otherwise, few, if any, cells will be seen in the microscope field.
Was this article helpful?
No more itching, odor or pain or your money is refunded! Safe and DRUG FREE Natural Yeast Infection Solutions Are you looking for a safe, fast and permanent cure for your chronic yeast infection? Get Rid of that Yeast Infection Right Now and For Good!