The centrifuge tube is a common experimental consumable in the laboratory, mainly used with the centrifuge. That is, put the experimental liquid in it and centrifuge it in a centrifuge.

According to the different materials, they can be divided into plastic and glass. Plastic centrifuge tubes are more commonly used, and can also be divided into PP, PC, PS, etc. According to different needs, manufacturers will choose different plastic materials to make.

According to its size, it is divided into 1.5mL, 2mL, 5mL, 10mL, 15mL, 50mL, etc., domestic centrifuge tubes are generally these specifications, the more used are 10mL and 50mL. If your centrifuge is equipped with 30mL or other specifications of centrifuge tubes, you should consider importing them. In addition, the centrifuge tube has round bottom and pointed bottom, as well as screw cap and plug cap. The centrifuge tubes with screw caps have finer scales, and only the overall capacity of the cap is marked.

The centrifuge tubes commonly used in the laboratory are plastic and glass, and the plastic is generally used more, because the glass centrifuge tube cannot be used in high-speed or ultra-speed centrifuges. Plastic centrifuge tubes are made of PP (polypropylene), PC (polycarbonate), PE (polyethylene) and other materials. PP pipe performance is relatively good. The plastic centrifuge tube is transparent or translucent, which can intuitively see the sample centrifugation, but it is easier to deform and has less corrosion resistance to organic solvents, so the service life is shorter. Therefore, laboratories often purchase centrifuge tubes. Let's introduce each material separately.

PP (Polypropylene): Translucent, with good chemical and temperature stability, but it will become brittle at low temperatures, so it should not be below 4 ° C during centrifugation.

PC (polycarbonate): good transparency, high hardness, can be sterilized at high temperature, but not resistant to strong acids and alkalis and some organic solvents such as alcohol. It is mainly used for ultra-high speed centrifugation over 50,000 rpm.

PE (polyethylene): opaque. It is non-reactive with acetone, acetic acid, hydrochloric acid, etc. It is relatively stable and easily softens at high temperatures.

PA (Polyamide): This material is a polymer of PP and PE material, translucent, chemically very stable, and not resistant to high temperatures.

PS (polystyrene): transparent, high hardness, stable to most aqueous solutions, but corroded by a variety of organic substances, mostly used for low-speed centrifugation, and generally used once.

PF (polyfluoro): translucent, can be used at low temperature, if it is an experimental environment at -100 ℃ -140 ℃, you can use centrifuge tubes of this material.

CAB (butyl acetate cellulose): transparent, can be used for gradient determination of dilute acids, alkalis, salts, alcohol and sucrose.