Learn how to use this product The Magnetic Separator is a transparent plastic rack with 4 x 12 wells. Two rows are suitable for 2 ml reaction tubes (left side), and two rows are suitable for 1.5 ml reaction tubes (right side), respectively. The middle rows contain magnets that are suitable for separating MagStrep Strep-Tactin®XT beads and MagStrep "type3" Strep-Tactin® beads from a solution within seconds, making the Magnetic Separator a helpful tool for efficient, easy, and fast batch purification of Strep-tag®II and Twin-Strep-tag® fusion proteins. The separation procedure can be interrupted by placing the reaction tube in one of the corresponding outer rows.