The difference between blood cell counting, microscopic counting and sampling test method

There is practically no difference between blood cell counting, microscopic counting and sample testing: \x0d\Humanistic version is called sample testing, the Northern Normal University version is called microscopic counting, and because of the actual operation of the process of blood cell counting plate, so it is also known as hemocyte plate counting method. \x0d\\\\\x0d\ blood cell counting plate principle of use \x0d\ microscope direct counting method is a method of placing a small amount of the suspension of the sample to be tested on a special kind of \x0d\ slide (also known as a bacterial counting device) with a defined area and volume, counting it directly under the microscope, and then extrapolating the number of bacteria contained. One of the commonly used bacteriological counters is the hemocyte counting plate. \x0d\ Blood cell counting plate is an instrument specially designed for counting larger single-celled microorganisms, made of a special slide thicker than an ordinary slide \x0d\ There are four concave grooves in the slide, forming three platforms. The middle platform is wider and is divided into two halves by a short horizontal groove, each half of which is inscribed with a square grid. There are nine large squares carved into the grid, of which only the center one is a counting chamber. This large square has a length and width of 1mm each and a depth of 0.1mm, and its volume is \x0d\0.1mm3, i.e., 1mm x 1mm x 0.1mm square for the counting plate; the large square has a length and width of 2mm each and a depth of 0.1mm, and its volume is 0.4mm3, i.e., 2mm x 2mm x 0.1mm square for the counting plate. On the blood cell counting plate, there are some symbols and numbers engraved, the meaning of which is: XB-K-25 is the model and specification of the counting plate, which means that this counting plate is divided into 25\x0d\ medium compartments; 0.1mm is the height of the counting chamber after the coverslip is covered; 1/400mm2 means that the counting chamber has an area of 1mm2, and it is divided into 400 compartments, and the area of each small compartment is 1/400 mm2."