Draft
Using a high-speed microcentrifuge safely requires balancing tubes by weight, inspecting for damage, and ensuring the lid is securely locked.
Always use matching, balanced tubes opposite each other to prevent violent vibrations.
Wait for the rotor to stop completely before opening, and use caution with rotor maintenance.
Key Safety and Operational Tips:
- Balance First: Crucial for high speeds. Balance tubes by weight (< 0.1 g difference) and place them symmetrically across from each other.
- Inspect Tubes: Check for cracks, chips, or damage before spinning.
- Use Proper Tubes: Only use tubes rated for the maximum force (RCF) required.
- Secure the Rotor Lid: Ensure the inner rotor lid is screwed on or locked before closing the main centrifuge lid.
- See note about spin columns.
- Never Force Open: Wait for the rotor to stop completely; do not force the lid open while it is spinning.
- Listen to the Unit: Stop the centrifuge immediately if it makes unusual noises or vibrations.
- Maintenance: Keep rotors clean, but avoid harsh detergents or bleach.
Spin Columns (Lid Open) Tips:
- Orientation is Key: Place the open cap facing away from the direction of rotation. This prevents the cap from snapping off or catching on the rotor.
- Reduce Speed: If caps are consistently breaking, lower the speed slightly during the centrifugation step, as discussed by users on Reddit.
- Spacing: Leave empty positions between tubes to allow room for caps to move.
- Column Prep: Ensure the column is properly inserted into the collection tube, notes Sigma-Aldrich.