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This magnetic bead separation system for 50 ml conical test tubes consists of 2 parts. The VP 772F1M is a magnetic base which set on a base with the same dimensions as a microplate (127.76mm by 85.48 mm) holds four 48 MGO NdFeB magnets that are 25.4 mm cubes. The VP 772F1R is a rack holding eight 50 ml conical test tubes which can be manually or robotically placed over the magnetic base and the magnetic beads in the test tubes are rapidly separated by the large and power magnetic field generated by the VP 772F1M. The photo on the right illustrates the two parts mated together and the photo below it illustrates how they perfectly fit together and hold the test tubes close to the magnets for rapid separation of the beads. Note that we have machined slots in the tube rack so you can see the tubes and when the beads have been separated. The key to our success is that we use
very large magnets with high energy 48 MGO or higher.
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Download video of VP 772F1M
& VP 772F1R in action
The photo to right illustrates a tube with suspended Magnasil beads (Promega) and the photo just below it was taken just 20 seconds later. The same test performed on a similar Promega separation system using much thinner and weaker magnets required twice the time to separate the beads. |
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The VP 772F is designed with two 42 MGO NdFeB magnets (51 x 51 x 79 mm) in an aluminum and polycarbonate frame to pellet Magnetic Beads to the sides of four 100 ml glass or 250 ml Nalgene bottles. These large magnets provide a very large and powerful magnetic field that will separate the magnetic beads in |
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Dimensions and specifications for the VP 772F can be found on this page. The key to our success is that we use very large magnets with high energy 48 MGO or higher. |
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