Researchers in biochemistry, molecular biology, medicine and other fields commonly use centrifugation to separate sample components, a technology that relies on gravity and mass: particles in a heterogeneous solution will over time separate based on size and density. Smaller, less-dense particles may also migrate downward, but at a much slower rate; some particles will never settle, but remain suspended in solution. Because centrifuges accelerate and enhance this process, they have found widespread use across the sciences since the late 19th century.
The fact that swinging-bucket rotors offer a superior sedimentation location makes them the obvious choice for centrifuging samples under most conditions; however, fixed-angle rotors offer valuable benefits that often make them a more desirable choice. What are they? First, due to its simple and efficient tube spacing, a fixed-angle rotor can hold a greater quantity of tubes compared to its swinging-bucket counterpart, making it more practical for high-throughput applications. Next, as a result of the rigid design of the metal alloy material, fixed rotors can withstand much higher gravitational forces necessary when separating biological macromolecules such as RNA, DNA and protein. Finally, researchers often wish to wash the pelleted material repeatedly after centrifugation. The placement of the pellet on the side of the tube allows it to be washed with solution more easily without the possibility of disturbing the pellet.
Floor model, IVD Certified 4L free-standing Megafuge ST4F and ST4F R Plus Centrifuges in ventilated and refrigerated models by Thermo Fisher Scientific
Hermle Z32 HK高速冷藏离心机
Hermle紧凑的高速冷藏离心机具有自动转子识别。使用带LCD显示器的微处理器控制召回存储的协议。
Thermo Fisher MySpin 12 Mini离心机
MySpin Mini Centrifuges具有安静而低的振动操作,使其成为理想的微量音量台式离心机。MySpin 12型号包括安全功能可调速度和用于RPM或RCF的后灯显示。
通过Thermo Scientific使用100编程内存和触摸屏LCD显示器4L通风和冷藏多方面X4和X4R Pro离心;FDA上市|1717-PP-03展示Multifuge X4和X4R Pro Benchtop Centrifuges由Thermo Fisher Scientific
1.6L Multifuge X1R Pro Cailrimated Centrifuge由Thermo Fisher Scientific使用触摸屏接口,100个程序内存和4 x 400毫升容量|1717-60展示IVD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-02展示Megafuge ST4 Plus Series Benchtop Centrifuges by Thermo Fisher Scientific
1.6L Megafuge ST1 / ST1R加上热量科学的离心机有15,200个最大RPM和6节目记忆|6707-PP-14展示Benchtop Megafuge ST1 and ST1R Plus Centrifuges by Thermo Fisher Scientific
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
冷室安全MC-24通过基准科学用全彩色触摸屏接受Microtubes和PCR管/条带|2829-PP-15展示MC-24 Touch High-Speed Microcentrifuge by Benchmark Scientific
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-07展示CW3 Centra Cell垫圈通过Thermo Fisher Scientific具有自动循环的紧凑型血液细胞垫圈降低了三分钟内交叉污染和过程24样品的风险;提供数字显示和警报
贺利氏Pico 21和壁画17微型离心机梅伊t complex micro-volume protocol for ventilated or refrigerated centrifugation|1108-PP-02展示Thermo Scientific Hereaus Pico 21通风和壁画17个冷藏微量离心Heraeus Pico and Fresco Microcentrifuges speed up micro-volume sample preparation processes; ideal for routine lab work or high-end research applications