... every 2----3 min.3, Magnetic separation:hold the EP tube in the left hand, hold the rectangular magnet ... the tube still for 1 min, then get the EP tube to do the magnetic separation to absorb the beads ... ( 65°C ) water tank for 10min. Slightly shake the EP tube several times every 2---3 minutes.7, If not ... for instant use, store the EP tube at 2~8°C. For instant use, rectangular ...