Abstract: A magnetic capture rack is disclosed for holding a plurality of tubes, the magnetic capture rack including a primary housing member having a stepped upper surface, a substantially planar base surface, and a longitudinal bore formed in the primary housing. The longitudinal bore is open at least at one end thereof, and a plurality of linearly arranged wells are formed in the stepped upper surface of the housing on opposing sides of the longitudinal bore and along substantially an entire length of the primary housing. A slidable magnetic member is provided which conforms in outer surface shape to an inner surface shape of the longitudinal bore, the magnetic member being selectively slidable into and out of the longitudinal bore.