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Using k-Factor to Compare Rotor Efficiency
15 Aug 2016This application note illustrates the relative rotor efficiencies of a selection of Beckman Coulter’s high-performance Centrifuges. Relative efficiencies are compared using k-Factor, a common parameter that includes all parameters (such as maximum speed, maximum radius, minimum radius, etc.) to replicate a centrifugation.
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CentrifugesCentrifuges are used to separate particulates suspended in a liquid via the application of a centrifugal force including cells, macromolecules, nanoparticles and precipitates. Centrifuges come in three sizes: microcentrifuges, benchtop and floor-standing centrifuges, depending on the volume and number of samples that require separation. When choosing a centrifuge, consider its maximum separation power indicated by its relative centrifugal force (RCF) value. Low force centrifuges reach a maximum RCF of 8,000 g, high-force centrifuges can reach maximum RCF values of 80,000 g. For extremely high forces, consider ultracentrifuges (up to 800,000 g). Refrigerated and vacuum centrifuges also known as concentrators are available for more specialized applications. A range of volumes are available for centrifuge tubes and microfuge tubes, depending on sample sizes. Find the best centrifuges in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Lab EssentialsLab essentials include laboratory consumables that are vital to the operation of all laboratories.