A chromogenic absorbent material for an animal litter includes an oxidizing agent responsive to peroxidatic/pseudoperoxidatic activity in an animal excretion or a first catalytic compound generating the oxidizing agent in situ. The material also includes a chromogenic indicator being chromogenically responsive to the oxidizing activity of the oxidizing agent, and an absorptive material which is porous, for absorbing the animal excretion. The absorptive material includes a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material; and may also include a second polysaccharide and a superabsorbent polymer. The material may be obtained in the form of particles having a low density and a high porosity, and is usable in conjunction with an animal litter for detecting various diseases in animals.

The invention relates to a monolithic porous material based on amorphous silica or activated alumina or on one of their mixtures, the material comprising substantially rectilinear capillary ducts that lie parallel to one another, and being intended to be used as packing in a chromatography column, characterised in that: the ducts have, relative to one another, a substantially uniform cross section; the cross-section of each duct is uniform over its entire length; the ducts pass right through the material; the volume of micropores smaller than 0.3 nm is smaller than 50% of the total porous volume of the material.

Disclosed in certain embodiments are carbon dioxide sorbents that include porous particles impregnated with an amine compound.

The invention concerns methods of removing undesirable molecules from the blood or physiologic fluid; said method comprising contacting said blood or physiologic fluid with a sorbent, said sorbent comprising a plurality of solid forms and comprising a cross-linked polymeric material having a plurality of ligands attached to the surface of said cross-linked polymeric material, comprising (i) zwitterionic moieties, (ii) oligo(ethylene glycol) moieties or (iii) mixtures thereof; said contacting comprising said sorbent sorbing a plurality of said undesirable molecules when said sorbent is administered within a patient's body.

A carbonaceous material having a pore size (p) ranging from a lower limit (a) to an upper limit (z) and a bulk density (σ) ranging from a lower limit (b) to an upper limit (y) where the comparative variability (g) defined as (y−b)/(z−a) is less than 1. Also, an adsorbent formed therefrom. Also, a chelating agent formed therefrom. Also, a film formed therefrom.

Polymeric sorbents for reactive gases are provided. More particularly, the polymeric sorbents are a reaction product of a divinylbenzene/maleic anhydride precursor polymeric material with a nitrogen-containing compound. The polymeric sorbent has nitrogen-containing groups that are covalently attached to the polymeric sorbent. The nitrogen-containing groups include a primary amino group, a secondary amino group, a tertiary amino group, or a combination thereof. Additionally, methods of sorbing reactive gases on the polymeric sorbents and compositions resulting from the sorption of reactive gases on the polymeric sorbents are provided.

A composite sorbent composition comprising a polymeric adsorbent; and an extractant having the formula, or a hydrate thereof, wherein Z is —C(O)— or —C(R′)(R″)— wherein R′ and R″ are each hydroxyl; and R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently hydrogen, halogen, hydroxyl, cyano, nitro, amino, —C(O)H, —C(O)OH, —C(O)NH.sub.2, alkyl, alkenyl, alkynyl, alkoxy, alkanoyl, alkylamino, alkyl carboxamide, alkyl ester, heteroalkyl, haloalkyl, haloalkoxy, cycloalkyl, aryl, arylalkyl, aryloxy, heterocycloalkyl, heteroaryl, heteroaryloxy, or heteroarylalkyl, each of which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 is unsubstituted or substituted with one or more substituents independently chosen from halogen, hydroxyl, WO 2019/023355 A1 cyano, nitro, sulphonato, amino, —C(O)H, —C(O)OH, —C(O)NH.sub.2, alkyl, alkoxy, alkylamino, heteroalkyl, haloalkyl, haloalkoxy, cycloalkyl, aryl, arylalkyl, aryloxy, heterocycloalkyl, heteroaryl, heteroaryloxy, or heteroarylalkyl; or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4 are together a group —O—CH.sub.2—O—, a group —CH.sub.2—O—CH.sub.2—, or a group —CH.sub.2—CH.sub.2—CH.sub.2—CH.sub.2—.

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The present disclosure relates, according to some embodiments, to a method for recovery of lithium ions from a lithium-ion containing liquid, the method comprising the steps of coating a nanoparticle with a styrene monomer; polymerizing the styrene monomer to form a poly-styrene-coated nanoparticle; attaching a dibenzo-12-crown-4-ether to the polystyrene-coated nanoparticle to form a lithium adsorbing medium; exposing the lithium ion-containing liquid to the lithium adsorbing medium to form a lithium-rich adsorbing medium; and extracting the lithium ion from the lithium-rich adsorbing medium.

Provided are a toxin separator and the like which are capable of selectively separating toxin present in a biological fluid by binding to protein, from the toxin and the protein. The toxin separator of the present invention also includes activated carbon of which a pore volume of pores having a pore diameter from 1.4 to 35 nm as measured by a nitrogen adsorption method is 0.06 cm.sup.3/g or greater.

In various aspects, the present disclosure pertains to high purity chromatographic materials that comprise a chromatographic surface wherein the chromatographic surface comprises a hydrophobic modifier and an ionizable modifier comprising one or more anion exchange moieties that are positively charged when ionized, as well as devices containing such materials. In other aspects, the present disclosure provides methods for mixed mode, anion exchange reversed phase liquid chromatography comprising: (a) loading a sample comprising a plurality of acidic analytes (e.g., acidic glycans) onto a chromatographic separation device comprising such a high purity chromatographic material and (b) eluting adsorbed acidic analytes from the high purity chromatographic material with a mobile phase comprising water, organic solvent, and an organic acid salt, wherein during the course of elution a pH of the mobile phase, an ionic strength of the mobile phase, and a concentration of the organic solvent are altered over time.