low-speed centrifugesmost laboratories have a standard low-speed centrifuge used for routine sedimentation of relatively heavy particles. the common centrifuge has a maximum speed in the range of 4000-5000 rpm, with RCF values up to 3000 x g. these instruments usually operate at room temperature with no means of temperature control of the sample. two tupes of rotors, fixed an-gle and swinging bucket, may be used in the instrument. Centrifuge tubes or bottles that contain 12 or 50 ml of sample are commonly used. low-speed centrifuges are especially useful for the rapid sedimentation of coarse precip-itates or red blood cells. the sample í centrifuged until the particles are tightly packed into a pellet at the bottom of the tube. the upper, liquid pỏ-tion, the supernatant, is then separated by decantation
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