Patent ID: 7678276
Filing Date: 2010-03-16
Classification: B01D,G01N

Abstract:
1. A method of separating a substance by supercritical fluid chromatography, comprising the steps of: liquefying a gas to form a liquefied gas; injecting a sample comprising a desired substance into a mobile phase comprising a supercritical fluid, formed from the resultant liquefied gas, and a solvent; passing the mobile phase into which the sample has been injected through a column for separating the desired substance from the sample; and dividing the mobile phase comprising the desired substance into the solvent and the gas; so that the desired substance is separated from the solvent, wherein, in the step of forming a liquefied gas, when a pressure of the gas divided from the mobile phase is higher than a pressure of a gas supplied for formation of the liquefied gas from a gas supply device, the gas divided from the mobile phase is liquefied.