Patent ID: 8148169
Filing Date: 2012-04-03
Classification: B01D,B01J,B01L,B82Y,G01N,Y10T

Abstract:
1. An automated parallel method for passing liquid through a plurality of pipette tip columns comprising the steps of: a) providing a plurality of pipette tip columns, wherein each column is comprised of: b) contacting said open lower ends of the columns with a liquid; c) actuating the pump piston to draw the liquid into the open lower ends of the columns and through the bed of hydrated gel resin media, wherein the volume of liquid drawn into the columns is 250 μl or less and wherein the pump piston displacement is 20 to 75 μl greater than the volume of liquid drawn into the column; and d) actuating the pump piston to expel the liquid through the bed of hydrated gel resin media and out of the open lower end of the columns.