An adsorbent and a use thereof are provided. The adsorbent is a metal-organic framework (MOF) MIL-125; the MOF MIL-125 has an external specific surface area (SSA) of 160 m.sup.2/g to 220 m.sup.2/g; and the MOF MIL-125 includes a micropore with an area of 1,000 m.sup.2/g to 1,500 m.sup.2/g. The external SSA of the MOF MIL-125 is much higher than an external SSA of the traditional MIL-125, which has promising application prospects in the adsorptive separation of xylene isomers and exhibits high selectivity for p-xylene.

An ion exchange chromatographic packing material is described that includes support resin particles and a copolymer grafted to the support resin particles. The copolymer includes polymerized functional monomers such as a first ion exchange group monomer and a second ion exchange group monomer. At a first pH, the first ion exchange group monomer is configured to have a first charge at a first pH, and the second ion exchange group monomer is configured to have a net neutral charge. At a second pH, the first ion exchange group monomer is configured to have the first charge at a second pH, and the second ion exchange group monomer is configured to have a second charge at the second pH where the first charge and second charge both have a same polarity.

A system and method of applied radial technology chromatography using a plurality of beads is disclosed, with each bead comprising one or more pores therein having a diameter of about 250 Å to about 5000 Å, and each bead having an average radius between about 100 μm to about 250 μm. Also disclosed are processes for selecting beads for use in a radial flow chromatography column, and for purifying an unclarified feed stream using a radial flow chromatography column.

The invention relates to containers or bags for chromatographic media and methods of packing chromatography columns using such containers. The bags may be used for storing and/or transporting chromatographic media and can be inserted directly into the chamber of a chromatography column in readiness for use.

Open tubular capillary columns for liquid and ion chromatography, based upon an ionically impermeable polyolefin capillary having a bore with a sulfonate-group- or amine-group-functionalized internal surface. The capillary columns may include a coating of ion exchanging nanoparticles electrostatically bound to the functionalized internal surface. The capillary columns may be made by exposing the interior surface to a sulfonating reagent comprising chlorosulfonic acid (ClSO.sub.3H), preferably from 85 wt % to 95 wt % chlorosulfonic acid at a process temperature of 20 to 25° C. The interior surface may be subsequently exposed to an asymmetrical diamine to form a sulfonic mid-linkage to the diamine, i.e., to form a sulfonamide-linked, amine-group-functionalized internal surface. The coating may be provided by subsequently exposing the interior surface to an aqueous suspension of ion exchanging nanoparticles to electrostatically bond the ion exchanging nanoparticles to the functionalized internal surface.

A system for removing undesirable organic compounds so that the desirable cannabinoids, terpenes, and any other beneficial organic compounds can be easily and effectively captured is provided herein. The system makes use of diatomaceous earth filters through which a solution containing the organic compounds is rinsed with liquid non-polar solvent. The undesirable components remain in the diatomaceous while the beneficial organic compounds pass through and are collected in a liquid solution.

Provided is a solid phase mixture including an oxidizing agent and/or a salt of the oxidizing agent and solid phase particles. The oxidizing agent is a compound capable of selectively oxidizing 1,2-diol compounds. In addition, a packing material containing the solid phase mixture is provided. Further, a column packed with the packing material is provided.

A method and a system and a container system for transferring separation resin from at least one first container (3; 3′; 3a, 3b; 3a′, 3b′, 3c′, 3d′) to a second container (5; 5′), wherein said first container is a deformable, single-use separation resin storage container, said method comprising the steps of:

preparing (S1) the at least one first container by providing a deformable, single-use container comprising an outlet port (4′) with a predefined volume of separation resin in a storage solution;

fluidizing (S3) the separation resin in the at least one first container to provide a resin slurry, said fluidizing being performed by mechanical interaction to the first container from an outside of the first container to provide a deformation of said first container;

fluidically connecting (S5) the outlet port (4′) of the at least one first container to an inlet port (103) of the second container;

transferring (S7) separation resin from the at least one first container to the second container by generating a pressure difference between an interior of the second container and an interior of the first container where the pressure is lower in the second container.

A method and a system and a container system for transferring separation resin from at least one first container (3; 3; 3a, 3b; 3a′, 3b′, 3c′, 3d′) to a second container (5; 5′), wherein said first container is a deformable, single-use separation resin storage container, said method comprising the steps of:—preparing (S1) the at least one first container by providing a deformable, single-use container comprising an outlet port (4′) with a predefined volume of separation resin in a storage solution;—fluidizing (S3) the separation resin in the at least one first container to provide a resin slurry, said fluidizing being performed by mechanical interaction to the first container from an outside of the first container to provide a deformation of said first container;—fluidically connecting (S5) the outlet port (4′) of the at least one first container to an inlet port (103) of the second container;—transferring (S7) separation resin from the at least one first container to the second container by generating a pressure difference between an interior of the second container and an interior of the first container where the pressure is lower in the second container.

The present disclosure is directed to a method of operating a chromatography column. This method involves collecting column outlet signal and accumulated flow parameters at two or more intervals of at least one mobile phase transition front during operation of the chromatography column comprising column packing. A model gamma cumulative distribution curve is determined based on the collected column outlet signal and accumulated flow parameters for the at least one mobile phase transition front. The height equivalent theoretical plate (HETP) value is calculated for the at least one mobile phase transition front using parameters of the model gamma cumulative distribution curve and the quality of the chromatography column packing is assessed based on the calculated HETP value. If during routine column monitoring, an adverse trend in HETP is observed or the control limits are exceeded, the eluate product quality, column process performance, and/or impurity removal data should be evaluated to ensure product quality for the identified batch. Should any of the product quality or column performance fail the criteria set, appropriate corrective action, such as conditioning, repacking or replacing the column, and qualification should be performed prior to release for further use.