The NucleoMag family of products is based on magnetic bead technology. Nucleic acids are bound to the magnetic beads under chaotropic salt conditions, contaminants are washed away with ethanolic wash buffers, and pure RNA and DNA are eluted from the beads using elution buffer.
Figure 1. NucleoMag magnetic bead technology. NucleoMag beads and binding buffer are added to the sample (left). Beads bound to DNA/RNA are held in place in the well by the magnet, and contaminants are washed away (middle). DNA/RNA is eluted while the beads are held in place by the magnet (right).