Patent ID: 8283185

Claim:
An apparatus for manipulating a magnetically susceptible component comprising: a cavity for manipulating the magnetically susceptible component with an additional substance, the cavity defining a central axis; a first coil disposed circumferentially about the cavity in a first position about the central axis; a second coil disposed circumferentially about the cavity in a second position about the central axis; a reaction vessel disposed within the cavity; a first electrical source connected to the first coil such that in response to a first electrical current passing from the electrical source through the first coil, the first electrical current generates a first individually addressable magnetic field substantially parallel to the central axis; and a second electrical source connected to the second coil such that in response to a second electrical current passing from the electrical source through the second coil, the second electrical current generates a second individually addressable magnetic field substantially parallel to the central axis; wherein the first and second magnetic fields define distinct, fluidly connected, reaction volumes within the reaction vessel.