Centrifuges have a lot to offer in the pharmaceutical industry, but they can't be used blindly, because centrifuges are also divided into several types. The following is a brief introduction to the classification of centrifuges.
The centrifuge is a well-known assistant in the pharmaceutical industry. It can be divided into low-speed centrifuge, high-speed centrifuge, ultra-speed centrifuge, etc. according to the speed; it can be divided into refrigerated centrifuge and normal temperature centrifuge according to temperature; Divided into micro-centrifuge, large-capacity centrifuge, ultra-large capacity centrifuge; according to the shape can be divided into desktop centrifuge, floor-standing centrifuge.
Of course, the classification of centrifuges is so fine. In fact, the main purpose is to ensure the safety of the users of the centrifuges. The classification can be carried out in a targeted manner, which can effectively avoid the loss of control in the operation of the centrifuge, thus causing significant losses.
In addition to the above mentioned machine to find a suitable machine when using the centrifuge, but also have the correct operation, the premise is to pay attention to whether the centrifuge tube is balanced, whether the speed exceeds the setting, the rotor is corroded and so on.
Next, take the desktop low-speed large-capacity centrifuge as an example, and talk about the main points of operation:
1. It is strictly forbidden to enter various liquids or other debris into the centrifugal working chamber. Otherwise it will damage the host.
2. The instrument case should be properly grounded to avoid accidents caused by moisture in the whole machine.
3. Do not open the top cover when the centrifuge head is running at high speed.
4. When the setting generates an error, it will automatically alarm to remind you to reset.
Here, we should pay attention to the fact that if the centrifugal head is eccentric when using the centrifuge, please familiarize yourself with the repair. First remove the rotor and then open the bottom cover to see if the motor strut is misaligned and adjust.
If you understand the detailed steps of the centrifuge, but please also carefully, can not be taken lightly, such as:
(1) The bottom of the centrifuge casing should be padded with cotton or test tube pads.
(2) If there is noise or vibration of the electric centrifuge, the power should be cut off immediately to eliminate the fault immediately.
(3) The centrifuge tube must be placed symmetrically into the casing to prevent vibration of the fuselage. If only one sample tube is to be replaced by water of equal quality.
(4) When starting the centrifuge, the top cover of the centrifuge should be covered before it can be started slowly.
(5) After the separation is completed, the centrifuge is turned off first, and after the centrifuge stops rotating, the centrifuge cover can be opened to take out the sample, and no external force can be used to force the movement to stop.
(6) The centrifugation time is generally 1 to 2 minutes. During this period, the experimenter must not leave to do other things.
These need to be understood by every skilled centrifuge operator. Knowing this knowledge can not only make the centrifuge safe to use, but also make the test data more accurate!
