The speed generally does not exceed 4000rpm and the maximum capacity is 2-4L. ◆ If the centrifuge tube leaks, find out the cause, and immediately clean the centrifuge rotor or centrifuge chamber. This type of centrifuge has a simpler structure. In order to prevent the drive motor from generating heat during high-speed operation, a cooling drive motor system (air-cooled, water-cooled), speed limiter, timer, speed recorder, etc. 2. When pressing the Start button, the hold time cannot be too short, please keep pressing it for about one second before releasing it. ◆ The speed and time settings should not be too high as much as possible. are installed. At this time, closely monitor. (2) The centrifuge tube must be well balanced, and the position should be balanced when placing it in the centrifuge. ④ Ultracentrifuge The speed can reach more than 50,000 rpm, which can fractionate subcellular organelles and be used for the determination of protein and nucleic acid molecular weight. 3. Or the amount of mother liquor is small, so the loss should be reduced during separation. ◆ It is the most dangerous when you start to accelerate. Why does it happen? balance? (3) Centrifugal rotors are generally divided into hanging basket swing bucket and angular angular angular. The basic structure and performance of electric centrifuges ① Ordinary (non-refrigerated) centrifuges. In the course of the experiment, to separate the precipitate from the mother liquor, two methods of filtration and centrifugation are often used. ◆If the cap of the centrifugal rotor is not tightened, it will fall out during centrifugation, causing great damage! (4) Close the centrifuge door, and adjust the desired speed and time on the dashboard (for example, 8,000 rpm 30 min'. ③ The amount of precipitation is too much and loose. There are two types of ultracentrifuge drive motors, one is for direct speed-up by a frequency-modulated motor, and the other is for speed-up by a variable speed gearbox. 1. The speed of low-speed Microcentrifuge Tube Manufacturers generally does not exceed 4000rpm, and the maximum speed of tabletop high-speed centrifuges can reach 18000rpm. (8) In the neutral position between two centrifugations, it is not necessary to take out the centrifugal rotor, but cover the door to prevent hot air from flowing into the centrifugal compartment. ◆ Note that the speed used must never exceed the limit of the centrifugal rotor. ④ The amount of precipitation is very small, and quantitative determination is required. The rotors of different capacities and different types of speed can be replaced according to the needs of the centrifuged material
