Abstract: An active material is disclosed comprising metal oxide/hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material comprised of a phosphorous-containing group and a carbon-containing group. The bond to the metal oxide/hydroxide particle surface is formed by reaction of the phosphorous-containing group with the metal oxide/hydroxide particle surface, so that the carbon-containing group of the material is oriented away from the metal oxide/hydroxide surface.

Abstract: Cellular adsorbents for removing viral contaminants from whole blood and protein solutions are prepared by immobilizing and stabilizing cells or portions thereof cellular receptors for the target contaminants. Removal of the viral contaminants from solution is effected by affinity binding of viral proteins of the contaminant and their corresponding immobilized cellular receptors.

Abstract: A separation medium useful as an adsorbent of liquid chromatography for optical resolution of racemic mixtures is disclosed, which comprises a reversed phase support coated with an optically active amino acid derivative represented by formula (I): ##STR1## wherein R.sub.1 represents a straight or branched alkyl group having from 1 to 3 carbon atoms; and R.sub.2 and R.sub.3 each represents a straight or branched alkyl group having from 4 to 12 carbon atoms which may contain an aromatic group or an unsaturated alkyl group.The separation medium is applicable to optical resolution of a wide range of DL-amino acids and exhibits excellent durability.

Abstract: A packing material for liquid chromatography, which comprises an optically active compound having the formula: ##STR1## wherein Ar is a phenyl group, an .alpha.-naphthyl group or a .beta.-naphthyl group, R.sub.1 is an alkyl group having from 1 to 4 carbon atoms, a phenyl group or a 3,5-dinitrophenyl group, R.sub.2 is an alkyl group having from 1 to 4 carbon atoms, *indicates an asymmetric carbon atom and n is an integer of 2 or 3, as a stationary phase.

Abstract: Peat is provided in the form of pellets for use in absorbing liquids and breaking emulsions. The hydrophilic/hydrophobic properties of the pellets may be varied, depending on the manner of drying. Calcium sulphate may be used as a binder, fire-retardant, absorbency enhancement, and emulsion breaker.

Abstract: A novel packing material suitable for high pressure liquid chromatography comprising the chemically bonded, crosslinked reaction product of porous inorganic particles, with an organic silane compound having epoxy groups on the surface of the particles, and then with polyvinyl alcohol, in which the hydroxyl groups of the polyvinyl alcohol and the epoxy groups on the silane moieties react to form ether bonds, which cover almost or almost completely the residual silica hydroxyl groups on the surface of the support.

Abstract: A moisture remover and a moisture removing apparatus which comprise a porous body and moisture-absorbing fillers basically. The porous body has continuous fine voids having a mean hole-diameter of 10 microns or less and a hollow portion therein to take out moisture and/or water. The moisture removing apparatus further comprises suction pump means for facilitating drawing of the moisture and/or the water.

Abstract: An adsorbent for lipoproteins which is a water-insoluble matrix having, on at least a part of the surface thereof, a group of the formula --NR.sup.1 R.sup.2 wherein R.sup.1 is hydrogen, methyl group or ethyl group; R.sup.2 is an atomic group having an aromatic ring satisfying that the value of log P, in which P is a distribution coefficient in a water-octanol system, of a compound of the formula R.sup.2 H is from 0 to 3.2 and an apparatus for removing lipoproteins using the above adsorbent. The lipoprotein adsorbent has such advantages as a low cost, a good stability and a sufficient adsorption selectivity for adsorbing LDL and VLDL in a fluid containing lipoproteins.

Abstract: Heparin in an extracorporeal blood flow circuit is removed from the blood flow with the use of a filter which contains immobilized protamine on a blood-compatible support. In medical procedures where blood is processed in an extracorporeal device, such as an artificial kidney, or a heart-lung machine, the blood is heparinized to prevent clotting thereof in the channels of the extracorporeal device, and the formation of thrombi. In accordance with the invention, the processed, heparinized blood is conducted to a filter arrangement wherein protamine is held immobilized on a support formed of a blood-compatible material. Such an arrangement actually removes heparin from the blood rather than merely negates the anticoagulation effects of the heparin, as is the case in conventional protamine infusion therapy. In the present invention, the extracorporeal blood which is returned to the patient is substantially free of both heparin and protamine.

Abstract: A scavenger, having utility for purifying a mixture comprising:(i) a primary component selected from one or more members of the group consisting of hydrogen selenide and hydrogen telluride, and(ii) impurities selected from one or more members of the group consisting of moisture and oxidants, comprising:(a) a support; and(b) associated with said support, one or more members of the group consisting of:(I) precursor compounds of the formula R.sub.3-x AlH.sub.x, wherein x is 0 or 1, and R is a hydrocarbon radical containing from 1 to 12 carbon atoms; and(II) aluminum chalconides of the formula Al.sub.2 M.sub.3, wherein M is selenium or tellurium.Illustrative supports useful in such scavenger include aluminosilicates, alumina, silica, carbon, and macroreticulate polymers. A process and apparatus are disclosed for purifying hydrogen selenide and/or hydrogen telluride, to remove moisture and/or oxidant impurities therefrom, in which a bed of the scavenger is employed.

Abstract: New separation materials for thin layer chromatography are based on carrier materials coated with an adsorbent silica gel layer which has been surface-modified by a silanizing agent after the coating step. The degree of covering of the modifying reagent can be adjusted in a defined an controllable manner, e.g., from 0.15 to 0.8 .mu.mol/m.sup.2 in the case of reversed phase materials and 1.2 to 2.5 .mu.mol/m.sup.2 in the case of hydrophilic materials. A process for the preparation of these separation materials is also provided.

Abstract: Hollow porous microspheres are used as substrates and containers for catalyst to make microsphere catalysts.The hollow porous microspheres are made from dispersed particle compositions. The microspheres have a single central cavity, have substantially uniform diameters and substantially uniform wall thickness and the walls of the microspheres have substantially uniform void content, i.e., interconnecting voids, and have substantially uniform distribution of interconnecting voids. The interconnecting voids in the walls of the microspheres are continuous and extend from the outer wall surface of the microsphere to the inner wall surface of the microsphere.The microsphere catalysts are prepared by coating or impregnating the hollow porous microspheres with a catalyst or by applying a catalyst support to the microspheres and then coating or impregnating the microspheres and catalyst support with a catalyst.

Abstract: An improved filter pad particularly useful to remove offensive pet odors emanating from animal crates and in aquariums is disclosed. The filter pad includes a base formed of unwoven, randomly oriented synthetic fibers impregnated with a mixture of zeolite particles and activated carbon particles effective to substantially reduce gaseous components having an offensive odor and discoloring agents in aquarium applications.

Abstract: An active material is disclosed comprising metal oxide/hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material comprised of a phosphorous-containing group and a carbon-containing group. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorous-containing group with the metal oxide/hydroxide particle surface, so that the carbon-containing group of the material is oriented away from the metal oxide/hydroxide surface.

Abstract: A chromatographic packing material is disclosed comprising a metal oxide/hydroxide particle having chemically bonded to reactive sites on a surface thereof, a monolayer of one or more phosphonic acids. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorous-containing group of the phosphonic acid with the metal oxide/hydroxide surface, so that the carbon-containing or non-polar group of the phosphonic acid is oriented away from the metal oxide/hydroxide surface.

Abstract: Porous materials having a dual surface are disclosed. Also disclosed is a method for their preparation. An example of such a material is a silica gel reacted with a reactive silane intermediate such as (CH.sub.3).sub.2 Si.dbd.O and then, with a reactive silane such as ##STR1## to give a dual treated material having --((CH.sub.3).sub.2 SiO).sub.x H on the exterior surface and ##STR2## on the interior surface of the pores.

Abstract: A process for purifying a gaseous mixture comprising arsine, phosphine, ammonia, and/or inert gases, to remove Lewis acid and/or oxidant impurities therefrom, comprising contacting the mixture with a scavenger including a support having associated therewith an anion which is effective to remove such impurities, such anion being selected from one or more members of the group consisting of: (i) carbanions whose corresponding protonated compounds have a pK.sub.a value of from about 22 to about 36; and (ii) anions formed by reaction of such carbanions with the primary component of the mixture.

Abstract: Dual zone reverse phase packing materials for use in liquid chromatographic blood serum analysis are prepared by contacting a porous support, such as porous silica, with a fluorocarbon silane, such as a perfluorobutylsilyl compound, to form a lipophobic phase in the external zone of the porous support, and, then contacting the porous support with a lipophilic silane, such as an octadecylsilyl compound, to form a lipophilic partitioning phase in the internal zone of the porous support. Ketal blocked diol groups, which later may be hydrolyzed to diol groups, are also attached to both zones of the packing materials. The dual zone reverse phase packing materials display a reduced degree of serum protein adsorption in the external zone while drug substances are retained and separated by the lipophilic partitioning phase in the internal zone.

Abstract: Packing materials for use in liquid chromatographic analysis are prepared by contacting a porous support, such as porous silica, with a ketal silane to form ketal blocked diol groups on the surfaces thereof. An end-capping reagent such as a trimethylsilyl reagent may be added. In addition, the ketal blocked diol groups may be further hydrolyzed to diol groups.

Abstract: A sheet-like oxygen scavenger for preserving foods or other article in an oxygen-free conditions. This oxygen scavenger is composed of a mixture of fibrous material, iron powder, water and electrolytic material and formed into a sheet-like product by a process which is similar to a paper making process. This sheet-like oxygen scavenger may be covered with gas-permeable film or laminate film. A method of manufacturing the sheet-like oxygen scavenger is also disclosed.

Abstract: The present invention relates to an infrared absorbent comprising a metal complex. With the use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing near infrared light having a wavelength of 700-1500 nm or far infrared light with a high transmittance of visible light and a good fastness to heat and light. The infrared absorbent is suitable for various applications such as a safelight filter for infrared sensitive materials, control of growth of plants, cut-off of heat radiation, infrared cut filter harmful to tissues of human eyes, infrared cut filter for semiconductor light receiving elements or color solid image pick-up elements, and infrared cut filter for an optoelectronic integrated circuit wherein electrical and optical elements are incorporated in the same substrate.

Abstract: A chromatographic packing useful for the separation of oligonucleotides is disclosed. The packing includes an insert porous support particle and a silane bonded phase comprising a weak anion exchange group in close proximity to at least one polar non-ionic group.

Abstract: A process for purifying a gaseous mixture comprising arsine, phosphine, ammonia, and/or inert gases, to remove Lewis acid and/or oxidant impurities therefrom, comprising contacting the mixture with a scavenger including a support having associated therewith an anion which is effective to remove such impurities, such anion being selected from one or more members of the group consisting of: (i) carbanions whose corresponding protonated compounds have a pK.sub.a value of from about 22 to about 36; and (ii) anions formed by reaction of such carbanions with the primary component of the mixture.

Abstract: The invention concerns new compounds for making a hydrophilic surface lipophilic. The compounds have the general formula ##STR1## wherein Z.sup.1 and Z.sup.2 are independently chlorine, fluorine, bromine, alkoxy with not more than 6 carbon atoms, NH, --NH.sub.2, --NH.sub.2 ', wherein R' is alkyl with 1 to 3 carbon atoms, --SH, --CN, --N.sub.3 or hydrogen, and R.sup.1 is ##STR2## wherein each of the S-substituents, S.sub.1, S.sub.2, S.sub.3, S.sub.4 and S.sub.5 are independently selected from the group consisting of hydrogen, alkyl with 1 to 4 carbon atoms, methoxy, ethoxy, and cyano, provided that at least one of the S-substituents is other than hydrogen and when there is a methyl or methoxy S-substituent then (i) at least two of the S-substituents are other than hydrogen, (ii) two adjacent S-substituents form with the phenyl nucleus a naphtalene or anthracene group, or three adjacent S-substituents form together with the phenyl nucleus a pyrene group, and X is the group --(CH.sub.2).sub.

Abstract: A packing material for liquid chromatography, comprising particles having a silicone polymer film coated on substantially the entire surface thereof, the packing material being produced by a process comprising the steps of:(a) bringing at least one silicone compound having the general formula (I):(R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I)wherein R.sup.1, R.sup.2, and R.sup.3 represent, independently, a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, R.sup.4, R.sup.5, and R.sup.

Abstract: New separation materials for thin layer chromatography are based on carrier materials coated with an adsorbent silica gel layer which has been surface-modified by a silanizing agent after the coating step. The degree of covering of the modifying reagent can be adjusted in a defined and controllable manner, e.g., from 0.15 to 0.8 .mu.mol/m.sup.2 in the case of reversed phase materials and 1.2 to 2.5 .mu.mil/m.sup.2 in the case of hydrophilic materials. A process for the preparation of these separation materials is also provided.

Abstract: An oil and grease absorbent material formed from treated paper sludge or other fibrous slurries and a method of treating the slurry to form the material which includes the physical properties of clay absorbents. The method involves the addition of materials to the shredded slurry to control color, bacteria, fungi, and density. A quantity of lipophyllic ray cells are added to the slurry to increase oil absorbency. The slurry is then formed into granules and dried before packaging.

Abstract: A body fluid purification medium comprises a support, and an adsorbent including at least one sulfa drug and fixed on a surface of said insoluble support for adsorbing and removing a pathogenic substance in a body fluid. The medium can be provided in a body fluid flow path provided in a container between body fluid inlet and outlet ports.

Abstract: There is disclosed a non-carbohydrate sulfated matrix and the use thereof to isolate and purify blood clotting factors and other blood proteins by a procedure involving the adsorption of at least one of such factors and proteins onto the non-carbohydrate sulfated matrix followed by elution of such factors and proteins onto the non-carbohydrate sulfated matrix followed by elution of such factors and proteins from the matrix.

Abstract: Water-insoluble, water swellable polymer compositions are disclosed. In one embodiment, the polymer composition comprises a copolymer of styrene and meleic anhydride and a multi arm block copolymer of styrene and ethylene oxide. In a preferred embodiment, the maleic anhydride groups of the anhydride-containing copolymer are treated with a strong base to further enhance absorption capacity.

Abstract: A process for the chromatographic separation of nucleic acid using a chromatographic carrier material is described in which the surface of the carrier material is specially modified.

Abstract: A compound for chemically impregnating an activated charcoal bed for efficiently removing radioactive iodine from air flow from an area through a chemically impregnated carbon filter in a nuclear air cleaning system in which the compound is selected from Quinuclidine.CH.sub.3 I; Triethylenediamine.2CH.sub.3 I; and Hexamethylenetetramine.CH.sub.3 I.

Abstract: Sulfonic derivatives of N-acylated covalently bound, non-crosslinked polyethyleneimine bonded phase silicas of the formula: ##STR1## is the backbone of a silica gel or controlled pore glass, n is an integer such that the polyethyleneiminopropyl silane group has an average molecular weight of from about 400 to about 1800; q is an integer of zero or one; R is selected from the group consisting of hydrogen, --(CH.sub.2).sub.x H or --(CH.sub.2).sub.m COOH where x is an integer of 1 or 2 and m is an integer of zero or 1; when R is hydrogen or --(CH.sub.2).sub.x H then R.sup.1 is --(CH.sub.2).sub.p COOH where p is an integer of zero or 1, and when R is --(CH.sub.2).sub.m COOH then R.sup.1 is selected from the group consisting of hydrogen or --(CH.sub.2).sub.y H where y is an integer of zero or 1, are especially useful as solid phases for the purification and separation of proteins having isoelectric points of below about 5.

Abstract: An insoluble composition for removing mercury from a liquid medium comprises a suitable insoluble carrier and a cysteine residue convalently fixed at the nitrogen atom thereof to the surface of the carrier.

Abstract: A bonded phase silica product of the formula: ##STR1## in which ##STR2## is the backbone of a silica gel or controlled pore glass, X is selected from --O--, --S--, ##STR3## each R and R.sup.1 are each independently selected from hydrogen, an alkyl group of from 1 to 3 carbon atoms and --CH.sub.2).sub.m COOR.sup.3, R.sup.2 and R.sup.3 are each independently alkyl of from 1 to 4 carbon atoms, n is an integer of from 2 to 5, p is zero or one and m is an integer of from 1 to 4, is suitable for use in solid phase extraction for cleanup of urine samples for analysis of cannabinoids.

Abstract: An adsorbent for removing low and/or very low density lipoprotein from body fluid in extracorporeal circulation treatment, which comprises a water-insoluble porous hard gel with exclusion limit of 10.sup.6 to 10.sup.9 daltons on which a sulfated compound is immobilized by a covalent linkage.

Abstract: Silica gel is treated with a reactive phthalocyanine compound to form the blue silica gel, which has a phthalocyanine skeleton linked through an organic group. Typically, a phthalocyanine reactive dye is used for the reaction with silica gel at its hydroxyl or other reactive site. The blue silica gel easily adsorbs and desorbs the polycyclic organic substances in a solution. The blue silica gel can be used for the separation or removal of the mutagenic substances from the environment, foodstuffs, etc.

Abstract: Supported organometallic compounds of Groups II, III and IV of the Periodic Table are utilized for purifying fluids particularly hydrocarbon fluids, noble gases, nitrogen and hydrogen and desirable hydrocarbon solvents and olefins to remove impurities such as oxygen, sulfur, halogen-containing compounds, active hydrogen compounds and other polar compounds. The supported organometallic compounds, preferably supported metal alkyls, are prepared by reacting the pretreated dried solid support material with the organometallic compounds in such a manner as to effect loading or impregnation of the organometallic moieties onto the support.

Abstract: Disclosed are a class of compositions, and methods of preparing them, which compositions are comprised of inorganic oxides and organic bases. The compositions have layered structures and are represented by the formulaZ.sub.a H.sub.b M.sub.c [A.sub.n-1 B.sub.n O.sub.3n+1 ]where Z is an organic base having a conjugate acid with a pKa value greater than about 3, H is hydrogen, M is a monovalent cation, O<a.ltoreq.2, c<1, and b+c=1; A is a mono-, di-, or trivalent cation, B is a transition metal, n is an integer from 3 to 7.

Abstract: An aqueous suspension of activated charcoal provides an inexpensive method for detoxifying large areas of soil and turf contaminated with organic pesticides.

Abstract: Water is effectively removed out of an organic liquid by filtering the organic liquid with a highly water-absorptive sheet which has been prepared from an alkali metal salt of fibrous carboxymethylcellulose.

Abstract: An adsorbent for adsorbing low density lipoproteins, which comprises a surface and, linked with the surface, at least one member selected from a silanol group and a synthetic polyanion member having a molecular weight of 600 or more, and has pores of diameters widely distributed in a specific range. The adsorbent has a high adsorbing capacity for low density lipoproteins and is useful for purifying and regenerating a body fluid with high selectivity for low density lipoproteins.

Abstract: Adsorbent for removing a harmful substance to be removed from body fluid such as blood or plasma composed of a porous hard gel on which a ligand having an affinity for the harmful substance is immobilized. The adsorbent is suitable for selective removal of harmful substances such as VLDL, LDL, harmful proteins, viruses and harmful cells, in extracorporeal circulation treatment.

Abstract: The acylated reaction product of silica gel or controlled pore glass and polyethyleniminopropyl trimethoxy silane suitable for use as chromatographic column packing, wherein said acyl function does not have a terminal carboxyl.

Abstract: The instant invention is directed to an activated carbon impregnated with 0.1 to 10 percent, by weight, of an amine compound, which is solid and sublimes at 40.degree. C. or above, and having a moisture content after impregnation of 5.0 percent or less, by weight.The instant invention is also directed to a process for impregnating carbon comprising allowing an amine compound, which is solid and sublimes at the temperature at which said amine is applied, to sublime in the presence of an activated carbon.The instant invention is also directed to the use of the impregnated carbon in removing toxic gases from a gas stream comprising passing the gas stream through the impregnated carbon.

Abstract: A broad variety of modified inorganic oxides may be prepared by surface-metallating the oxide with a metal tetrahalide followed by displacement of a halogen bonded to the metal by a nucleophilic organic functional group. The results are organic moieties coating the surface of the oxide by being covalently bonded to a metal which, in turn, is covalently bonded to an oxygen originally associated with a surface hydroxyl of the inorganic oxide.

Abstract: The aim of the invention was to find a method of producing a sorptive body, to be used especially with objectives such as the elimination of odors and air freshening. In the invented process a granular or powdered solid component consisting of a sorptive material, e.g. active carbon, or a compound containing such a material, is mixed with a binding agent, by which it is generally fixed to a carrier substance. The essence of the invention is that at least part of the finely-ground solid component is mixed with a liquid sorbate; only then it is combined with the dissolved binding agent. In a subsequent operation heat is applied to the mixture, thereby expelling the sorbate. The heat causes pores and capillaries to form within the binding agent, thus enabling air to enter into the sorptive substances deposited in the binding agent and so effecting an increase in the active area of the surface of the body.

Abstract: A support material comprised of a substrate and a coating bound to the substrate made up of a polymer containing succinimide units or derivatives thereof. A method for preparing a support material comprising reacting a polymer containing succinimide units with surface amine groups on a substrate.

Abstract: A metal ion adsorbent free from release of oxine from activated charcoal even at a high temperature of more than 150.degree. C. is prepared by adsorbing oxine or its derivative onto activated charcoal, adsorbing a phenol onto activated charcoal, dipping the resulting activated carbon into an aqueous solution of aldehyde such as formaldehyde, methylolizing oxine or its derivative in the presence of an acid or an alkali as a reaction promoter, and binding the methylolized oxine derivative, and the phenol by copolymerization or oxine can be methylolized in advance and then adsorbed onto the activated charcoal in place of adsorption of oxine onto the activated carbon, followed by methylolization of the oxine on the surface of the activated charcoal.

Abstract: Granular media are featured which cleanse oil from oil-in-water emulsions. These media comprise a glass or filter sand substrate. The substrate is treated with at least one trialkoxysilane wherein the alkoxy moiety comprises from 1 to 2 carbons. The granular media are backwashable to refresh their lipophilic properties.