A method for tagged magnetic resonance imaging is disclosed. The clip has a plate with a first edge and a second edge opposite said first edge. An algorithm for optimally balancing data flow graph topology to further reduce the data path widths and further enhance mergeability is combined with the above in an iterative algorithm for optimizing DFGs. The bottom cover supports the backlight unit and has a flat shape. The filtrate can be thereby rendering substantially free of the target compound.