A laboratory centrifugal concentrator tube is a specialised device used in biochemical and molecular biology labs to concentrate samples by rapidly spinning them at high speeds. The centrifugal force generated by the device causes heavier particles, such as proteins or nucleic acids, to move toward the bottom of the tube, while the lighter, less dense components are pushed to the top. This process effectively reduces the volume of the sample while increasing the concentration of the target substances, which is crucial for subsequent analyses or experiments. These tubes are commonly used in protein purification, DNA/RNA concentration, and other applications requiring precise sample concentration.