A chromatography medium includes a porous matrix and nonporous globules bound on the inner and outer surfaces of the porous matrix. The average radius of the microglobules is not more than 30% of the average pore diameter of the porous matrix. The chromatography medium can be used in affinity chromatography. A method for preparing the chromatography medium may include providing a porous starting matrix, providing a polymerization solution, and initiating polymerization of the polymerization solution in the presence of the porous starting matrix to form insoluble nonporous microglobules that are bound to the inner and outer surfaces of the porous starting matrix.

The present invention describes a method of capturing a fluorinated carbon compound located within a liquid, the method comprising contacting the fluorinated carbon compound with a block copolymer having a backbone comprising a hydrophilic block and a fluoropolyether block, wherein the fluorinated carbon compound binds to and is captured by the block copolymer.

There is provided a hyper-branched polymer represented by the following formula (1) and having a weight-average molecular weight in a range of 1,000 to 1,000,000. In the formula (1), A.sup.1 is a group containing an aromatic ring, A.sup.2 is a group containing an amide group, A.sup.3 is a group containing sulfur, R.sup.0 is hydrogen or a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms, ml is in a range of 0.5 to 11, and n1 is in a range of 5 to 100. ##STR00001##

The invention relates to inorganic particles which are covalently bonded to first polymer chains made up of at least one polymer carrying proton exchange groups, optionally in the form of salts, and bonded to second polymer chains made up of at least one fluorinated polymer that does not carry any proton exchange groups, the second chains being bonded to the particles via organic spacer groups, or the second chains being bonded to first chains via organic spacer groups, or some of the second chains being bonded to the particles via organic spacer groups while the remaining second chains are bonded to first chains via organic spacer groups.

The present disclosure provides an apparatus for sampling at least one analyte from a sampling fluid. The apparatus includes: a solid-phase microextraction (SPME) sampling instrument. A connector is attached to the SPME sampling instrument and is coupleable to an aerial drone. The apparatus includes a protective cover that is sized and shaped to at least partially surround the SPME sampling instrument. The SPME sampling instrument and the protective cover are movable in relation to each other between a protecting configuration and a sampling configuration. The SPME sampling instrument and the protective cover are (i) biased in the protecting configuration when the density of the fluid surrounding the SPME sampling instrument is less than the density of the sampling fluid; and (ii) biased in the sampling configuration when the density of the fluid surrounding the SPME sampling instrument is equal to or greater than the density of the sampling fluid.

Novel sorbents, devices, kits and methods useful for sample treatment are disclosed herein.

Sorbents, devices, kits and methods useful for sample treatment are disclosed herein. In particular embodiments, described are inorganic/organic hybrid sorbent particles comprising (a) a core region that comprises a silica component and (b) a surface region that comprises an organic copolymer comprising at least one hydrophobic organic monomer and at least one hydrophilic organic monomer.

The present invention relates to activated carbon sorbents including nitrogen. In various embodiments, the present invention provides an activated carbon sorbent including a halogen- or halide-promoted activated carbon, the activated carbon sorbent particles including nitrogen in a surface layer of the sorbent particles. In various embodiments, the present invention provides a method of reducing the pollutant content in a pollutant-containing gas using the activated carbon sorbent. In various embodiments, the activated carbon sorbent can remove mercury from a mercury-containing gas that includes sulfur(VI) such as SO.sub.3 more efficiently than other sorbents.

Provided is a stationary phase for chromatography, the stationary phase being made of inorganic carrier particles to which is bonded a polymer having a hydrophilic group on repeating units of a main chain thereof, and being produced by a particular production method.

Provided is a chromatography stationary phase having an excellent molecule discriminating ability. Specifically, provided is a chromatography stationary phase including a carrier carrying a copolymer that has a pyrrolidone backbone or a piperidone backbone, and an imide backbone in a repeating unit of the main chain.