The object of the invention relates to an extraction cell (100) used in a centrifugal partition chromatograph, which has a cell wall (120) determining a closed extraction chamber (150), as well as an inlet (115) and an outlet (140) ensuring the fluid connection between the extraction chamber (150) and the space outside of the extraction cell (100) formed on essentially opposite parts of the cell wall (120). The extraction cell (100) according to the invention is constructed asymmetrically from the point of view of the reversibility of the direction of flow used when the centrifugal partition chromatograph is in operation.

The object of the invention relates to an extraction cell (100) used in a centrifugal partition chromatograph, which has a cell wall (120) determining a closed extraction chamber (150), as well as an inlet (115) and an outlet (140) ensuring the fluid connection between the extraction chamber (150) and the space outside of the extraction cell (100) formed on essentially opposite parts of the cell wall (120). The extraction cell (100) according to the invention is constructed asymmetrically from the point of view of the reversibility of the direction of flow used when the centrifugal partition chromatograph is in operation.

The present disclosure relates to methodologies, systems, and devices for screening lipids. The technique includes selecting a set of standards to identify at least one desired class of lipids, spiking the standards into a biological sample to form a sample matrix, extracting the lipids from the sample matrix, and introducing the sample matrix into a chromatography system to separate the desired class of lipids. Once the lipids are separated into different lipid classes using HILIC chromatography, they are directed to a detector, and the separated lipids are quantified based on a comparison between the measured detector response and a calibration curve generated with a known concentration of the selected set of standards.

The invention relates to cannabinoids and their isolation and purification and to obtaining them by means of centrifugal partition chromatography.

The invention relates to cannabinoids and their isolation and purification and to obtaining them by means of centrifugal partition chromatography.

The present invention relates to the purification of TNFR:Fc fusion protein. More specifically related to process of purification of TNFR:Fc fusion protein wherein the HCP is reduced. The present invention is directed to the use of mixed-mode chromatography and/or affinity chromatography to produce TNFR:Fc fusion protein which is substantially free of at least one of the protein degrading enzyme present in HCP.

The present invention relates to the purification of TNFR:Fc fusion protein. More specifically related to process of purification of TNFR:Fc fusion protein wherein the HCP is reduced. The present invention is directed to the use of mixed-mode chromatography and/or affinity chromatography to produce TNFR:Fc fusion protein which is substantially free of at least one of the protein degrading enzyme present in HCP.

A cyclic chromatographic purification method for the isolation of a product from a feed mixture consisting of the product and at least one further component representing impurities, which impurities bind stronger to the chromatographic stationary phase than the product is given. The method uses at least two chromatographic adsorbers as chromatographic stationary phase, grouped into only one first adsorber section (1) and one second adsorber section (2), wherein if an adsorber section comprises more than one chromatographic adsorber these are permanently connected in series, wherein the first adsorber section (1) has a first adsorber section inlet and a first adsorber section outlet, and the second adsorber section (1) has a second adsorber section inlet and a second adsorber section outlet.

A method of purification and/or separation of glycopeptides and quantitation of same. The method includes contacting a sample comprising glycopeptides to a hydrophilic enrichment substrate under conditions that permit the glycopeptides to bind to the hydrophilic enrichment substrate. The glycopeptides are eluted from the hydrophilic enrichment substrate with an ammonium formate and acetonitrile (ACN) in water solution to create an enriched glycopeptide sample, which may be subjected to analysis to identify specific glycopeptides.

Embodiments of the present disclosure are directed to methods for preparing a target polypeptide from a mixture including the target polypeptide. The method may include contacting the mixture to a hydrophobic interaction chromatography (HIC) apparatus including multiple chromatographic zones. The method may further include passing the target polypeptide through the outlets of at least a first zone and a second zone of the HIC apparatus. A residence time for the mixture including the target polypeptide in a first zone may be approximately the same as a residence time of one or more mobile phases in the second zone.