Patent ID: 7937990
Filing Date: 2011-05-10
Classification: G01N

Abstract:
1. A liquid chromatograph comprising: a separation column having a packing separation material into which a sample and a mobile phase are introduced, a covering member for covering an outer periphery of said packing separation material, and a supporting member into which said packing separation material covered with said covering member is inserted, a pressure between said covering material and said supporting member in a fluid outflow side being lower than a pressure between said covering material and said supporting member in a fluid inflow side; a sample introduction section for introducing said sample into said mobile phase; a mobile phase transfer unit for introducing said mobile phase and said sample into said packing separation material; a detector for detecting a sample separated in said packing separation material; a fluid transfer unit for introducing a fluid between said covering material and said supporting member; a fluid inflow pipe for introducing a fluid between said covering member and said supporting member from said fluid transfer unit; and a fluid outflow pipe for discharging a fluid introduced between said covering member and said supporting member to an outside.