Patent ID: 8156788

Claim:
A method for the supercritical fluid chromatography of a product, comprising the steps of: performing a pumping operation for a supercritical fluid, performing at least one first routing between an analytical path and preparatory path, where the at least one first routing occurs prior to the operation for pumping the supercritical fluid, and where the said analytical and preparatory paths each includes an analytical and preparative column, respectively, and its own supercritical fluid pumping and injection operations, each adjusted according to whether the chromatography is analytical or preparative, performing an injection operation for at least one sample of the product in one of the analytical or preparative chromatography column, performing an operation for detection, performing a regulation of the pressure of the system downstream of the detection, performing operation for the collection of fractions, and wherein the regulation of pressure and the collection operation is common to the analytical and preparatory paths.