Centrifugation utilizes centripetal force to drive the separation of a heterogeneous solution into supernatant and pellet. The modern centrifuge amplifies the force of gravity by spinning solutions at a high rate of speed to increase the rate of sedimentation. During this process, materials with a high particle density will sediment towards the axis of centrifugation (down the tube), while materials with a lower particle density will sediment away from the axis of centrifugation. For example, bacterial cells in suspension have a high particle density and will tend to settle to the bottom.
The centrifuge incorporates one of two types of rotors, which house the tubes where separation occurs. Fixed-angle rotors hold tubes at a stable angle (typically 45°) relative to the axis of rotation. A swinging-bucket rotor swings out when centripetal force is applied and holds the cells at an approximate 90° angle relative to the angle of rotation. Recall that more dense materials will separate towards the angle of the centripetal force. Therefore in swinging-bucket rotors, the pelleted material will form at the bottom of the conical centrifuge tube whereas tubes processed in a fixed-angle rotor will form sedimentation on the side. This could be problematic if the solids get caught in the angle of the tube.
Heraeus Megafuge Benchtop Centrifuge from Thermo Fisher is designed for clinical and research labs. Use control panel to process samples in tubes and microplates.
Compact Benchtop Centrifuges from Thermo Scientific
基准MyFuge 12迷你离心机Quasar Insturements
由基准科学和Thermo Fisher的迷你/微离心机
通风和冷藏地板站4升多方面X4F Pro系列离心机由Thermo Fisher Scientific节省桌面空间;100程序内存a|1717-PP-04displayedFloor standing Multifuge X4F Pro Series Centrifuges by Thermo Fisher Scientific
4L ventilated and refrigerated Multifuge X4 and X4R Pro Centrifuges by Thermo Scientific with a 100-program memory and a touchscreen LCD display; FDA listed|1717-PP-03displayedMultifuge X4和X4R Pro Benchtop Centrifuges由Thermo Fisher Scientific
1.6L Multifuge X1R Pro Refrigerated Centrifuge by Thermo Fisher Scientific with a touchscreen interface, 100-program memory and a 4 x 400 mL capacity|1717-60.displayedIVD认证多饼X1R Pro Benchtop冷藏离心机由Thermo Fisher Scientific
4升Megafuge ST4和ST4R Plus Benchtop Centrifuges通过Thermo Scientific与Autolock转子交换旋转到196 x 5/7 ml血管|1717-PP-02displayedMegafuge ST4 Plus系列Benchtop Centrifuges由Thermo Fisher Scientific
1.6L Megafuge ST1/ST1R Plus Centrifuges by Thermo Scientific have a 15,200 maximum rpm and 6-program memory|6707-PP-14displayedBenchtop Megafuge ST1和ST1R加上热渔民科学的离心机
紧凑型11“单元具有免维型,感应转子,AM先进的微处理器和13,500 MAX RPM符合普通Microtubes;在115V和230V型号Hermle的Benchtop Z207-M MicroCentrifuge
带12管或24管转子的型号的最大速度为3,000rpm(离心机);1200rpm(洗涤);350至500rpm(倾析)|1108-PP-07displayedCW3 Centra Cell垫圈通过Thermo Fisher ScientificCompact blood cell washers with automated cycling reduce the risk of cross-contamination and process 24 samples in three minutes; features a digital display and alerts
Thermo Fisher Scientific general product manager, John Collings on the compact benchtop centrifugesCompact Benchtop Centrifuges from Thermo ScientificShort video demonstrating the benefits of the compact benchtop centrifuge
Choose from a wide range of microcentrifuges ideal for quick spin down of tubes, PCR tubes and microplates; rotors and adapters sold separately|2812-PP-01displayed由基准科学和Thermo Fisher的迷你/微离心机MyFuge Mini离心机(显示)包括用于MicroTube和PCR管/条带的转子;MyFuge 5,12,Stripspin 12,PlineFuge MC-12高速和MySpin型号也可从基准科学获得