Piston displacement : 20 to 100 μl or wider automatically matched flow rate or user-selectable. Minimum sample volume : 1 μl can be sampled from 5ul or less. then 1% 1-5ul, Programmable Slit width : 1, 2, 4, 8, 16nm 1 μl can be sampled from 5ul or less. then 1% 1-5ul