Centrifuge is the best choice for separating samples. A […]
Centrifuge is the best choice for separating samples. Among them, the centrifuge tube is one of the most important accessories in the centrifuge. It is mainly used to hold experimental samples. When we use the centrifuge, the first thing we need to use is the rotor. The centrifuge tube needs to be placed in the rotor. The reason why the centrifuge tube is one of the most important accessories of the centrifuge is because if there is no centrifuge tube, the sample cannot be loaded. So how should the centrifuge tube be selected?
To understand how to choose a centrifuge tube, we must first talk about the material. The material of the centrifuge tube is generally divided into three types, the first is a plastic centrifuge tube, the second is a glass centrifuge tube, and the third is a steel centrifuge tube.
Generally speaking, our commonly used centrifuge tubes are plastic centrifuge tubes. The advantages and disadvantages of plastic centrifuge tubes are also obvious. The advantage is that its hardness is relatively small, and the puncture method can be used to obtain the material we need. But this is also its shortcoming. Because of its low hardness, it is also easier to deform and has poor corrosion resistance, so its lifespan is relatively short.
The plastic centrifuge tube can also be selected according to the material. There are three materials: polyethylene (PE), polycarbonate (PC), and polypropylene (PP). Generally, large-scale laboratories use plastic centrifuge tubes for one-time use, but ordinary laboratories will still recycle them. Recycling is not recommended, because this will cause inaccuracy of experimental results, but if you have to recycle it However, the editor still recommends using pp centrifuge tubes, and then sterilize them by high pressure and high temperature. The pp material is the better of the above three materials, so when choosing, we try to choose pp centrifuge tubes.
The second is the glass centrifuge tube. Everyone knows that glass is easy to break, so if we choose the glass centrifuge tube, the centrifugal force of the centrifuge must not be adjusted to a high level. It is also necessary to put a rubber pad on the glass centrifuge tube to avoid breaking. The advantage of the glass centrifuge tube is that the tube body is transparent, which is conducive to observing the separation.
Finally, steel centrifuge tubes, steel centrifuge tubes have the advantages of high hardness, heat resistance, frost resistance, and non-deformation, etc., which are widely used. Generally, steel centrifuge tubes will be recycled.