In various aspects, the present disclosure pertains to methods of performing a sample enrichment procedure, which comprise: adding a sample fluid that comprises at least one phospholipid and at least one target analyte to a sorbent that comprises a hydrophobic component and a cation exchange component, thereby resulting in sorbent with bound phospholipid and bound target analyte; adding an aqueous solution comprising an acidic compound and a salt; adding an organic solution to the sorbent thereby desorbing at least a portion of the bound phospholipid from the sorbent; and adding an elution solution to the sorbent, thereby desorbing at least a portion of the bound target analyte from the sorbent and forming a solution of the target analyte in the elution solution. In other aspects, the present disclosure pertains to kits, which may be used in conjunction with such methods.

The invention concerns a purification method comprising: providing a flow comprising a glycol, monovalent ions and multivalent ions; treating this flow with ion exclusion chromatography comprising: injecting the flow into a chromatographic unit comprising an ion exchange stationary phase; injecting an eluent into the chromatographic unit; collecting a fraction at the outlet of the chromatographic unit; the collected fraction being enriched with glycol and depleted of monovalent ions and multivalent ions relative to the flow.

The invention also concerns an installation adapted to implement this method, and its application to the regeneration of an anti-hydrate agent.

The invention discloses a separation matrix comprising a plurality of multimodal ligands covalently coupled to a support, wherein said support is a membrane comprising nonwoven polymer fibers and wherein said ligands are capable of interacting with a target biomacromolecule. Further, the invention discloses separation methods using the separation matrix.

The invention discloses a separation matrix comprising a plurality of multimodal ligands covalently coupled to a support, wherein said support is a membrane comprising nonwoven polymer fibers and wherein said ligands are capable of interacting with a target biomacromolecule. Further, the invention discloses separation methods using the separation matrix.

Methods and devices for use in removing biogenic amines from wine or other liquids are described. The methods and devices use a cation exchange resin and/or molecularly imprinted medium selective for amines to remove the amines from the wine or other liquid at the point of use.

The present invention relates to a method for fractionating a feedstock into two or more fractions enriched with different components, and more particularly to a method for fractionating a feedstock into two or more fractions by a chromatographic sequential simulated moving bed (SMB) system, wherein the SMB system comprises a separation loop comprising at least 2 compartments; and wherein the method comprises a separation cycle comprising at least one feeding step, at least one circulating step and at least one eluting step; wherein the dissolved substances in the feedstock form a separation profile as they progress through the separation loop; and the separation profile is progressed more than once or less than once through the separation loop in each separation cycle; and wherein at least two flow paths are present in the separation loop during each feeding step of the separation cycle; and at least one of said flow paths is an active flow path and at least one of said flow paths is an inactive flow path.

The present invention concerns an extracorporeal circuit for regional scoagulation of blood comprising a line for taking the blood from the patient, a first filtering unit, and a line for returning the blood to the patient defining a main circuit, the extracorporeal circuit comprising a secondary circuit for recirculation of the plasma water comprising: a calcium removal assembly adapted to provide a solution with low calcium content in said main circuit;
the extracorporeal circuit further comprising: first means for the infusion of said solution with low calcium content into said main circuit upstream of said first filtering unit and of said calcium removal assembly with respect to the blood flow direction in the main circuit and second means for the infusion of an electrolytic re-establishment solution located downstream of said first means with respect to the direction of the blood flow in said main circuit.

This document describes a process for the high purity and high concentration recovery of monovalent products via continuous ion exchange from aqueous solution for further down-stream purification.

The present invention describes a simple purification process for recombinant human serum albumin. The process results in highly purified protein with limited number of purification steps. The broth containing human albumin is clarified by centrifugation and microfiltration, diafiltered and captured by cation exchange chromatography by a process that allows 140-230 mg of albumin to be captured per mi of resin. Product related impurities are removed by hydrophobic interaction chromatography, optimised to allow 87-97% recovery in flow through mode. The final series of processes are so combined that there is easy transition from one step to the next with minimal interventions and adjustments. The entire process of purification is completed within two days from harvest to final product. Thus a cost-effective process with improved recovery of protein at each step is developed. The purified human serum albumin is analyzed for purity and shows physicochemical characteristics that are similar to standard albumin.

A chromatography device for removing a solute from a fluid is provided. The device has a first plate having an inlet and a first channel. The first channel directs the fluid from the inlet towards chromatographic media housed in a chamber coupled to the first plate. The chamber has a leading edge for receiving the fluid from the first channel and a trailing edge for delivering the fluid to a second channel. The chromatographic media is configured to remove the solute from the fluid as the fluid passes through the chamber. The device also has a second plate coupled to the chamber having the second channel and an outlet. The second channel directs the fluid from the chamber to the outlet. The direction of flow of fluid through the first channel and the second channel is transverse to a direction of flow of the fluid through the chromatographic media. A method of removing a solute from a fluid is also provided.