Abstract: After passing alcoholic liquors 20 through an HSO3 type strongly basic anion exchange resin layer 14, or after adding an HSO3 salt to alcoholic liquors; the alcoholic liquors are passed through a mixed bed layer 18 containing of an H type strongly acidic cation exchange resin and a free base type weakly basic anion exchange resin, or the alcoholic liquors are successively passed through an H type strongly acidic cation exchange resin layer and a free base type weakly basic anion exchange resin layer. According to this way, it is possible to remove aldehydes and inorganic salts from alcoholic liquors such as brewed alcoholic liquors and distilled alcoholic liquors, while strongly retaining a peculiar fragrance or retaining a manneristic flavor.

Abstract: An ion adsorption module comprises a container with at least an opening into which feed water flows, and an organic porous ion exchange material having a three-dimensional reticular structure filled into the container, which has a continuous pore structure comprising macropores and mesopores, the macropores being interconnected with each other forming mesopores with an average diameter of 1-1,000 ?m in the interconnected parts, has a total pore volume of 1-50 ml/g, contains uniformly distributed ion exchange groups, and has an ion exchange capacity of 0.5 mg equivalent/g or more of the porous material on a dry basis. The ion adsorption module can be extremely easily filled with the ion exchange material, and the packed layer does not move even if the layer is placed in an upward flow. The ion adsorption module and the water processing method using the ion exchange material are extremely useful.

Abstract: A chemical filter, characterized in that it uses, as an adsorption layer, an organic porous ion exchanger which has an open pore structure wherein a meso pore having an average diameter of 5 to 1,000 ?m is formed in the wall between a macro pore and a macro pore connected with each other, has a total pore volume of 1 to 50 ml/g, has ion-exchange groups being uniformly distributed, and has an ion-exchange capacity of 3.0 mg equivalent/g-dry porous material or more. The chemical filter can maintain the capacity of adsorbing and removing a gaseous contaminant even at an enhanced gas transmission rate, and can remove also a trace amount of a gaseous contaminant.

Abstract: A non-particulate organic porous material with optical resolution capability, the non-particulate organic porous material having a continuous pore structure, which comprises macropores and mesopores, the macropores being interconnected forming mesopores with a radius of 0.01-100 ?m in the interconnected parts, and optically active groups uniformly introduced therein possesses high physical stability, can be used under wide separating conditions, and has a large capacity for separating optically active substances (enantiometers).

Abstract: In the electrodeionization deionized water producing apparatus, water is passed through a deionizing chamber(s) packed with an organic porous ion exchange material having a three-dimensional network structure to remove ionic impurities in the water, thereby producing deionized water. At the same time, a DC electric field is applied to the deionizing chamber(s) to discharge ionic impurities adsorbed on the organic porous ion exchange material outside the system, wherein the DC electric field is applied so that the ions to be discharged may electrophoretically move in the direction reverse to the flow of water through the organic porous ion exchange material.

Abstract: A meat product or a processed meat product coated with a film of curdlan gel is prepared.

Abstract: A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 ?m existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.

Abstract: A high-sensitivity measuring instrument comprising at least two sensors for detecting the same characteristics by touching a substance being measured with a specified time difference, wherein the between detection signals taken out simultaneously from respective sensors is determined, the difference between characteristic values upon elapsing the specified time difference is determined from the difference between detection signals, a reference time of measurement and a reference characteristic value at that time are preset, a time axis having a time pitch of a specified time difference is set, and a measurement value is obtained at a point in time elapsing an arbitrary time pitch from the reference time. Objective measurement characteristics can be detected by the measuring instrument not in the form of difference or variation but as an absolute value with high accuracy and sensitivity.

Abstract: A separation column for ion chromatograph, which is packed with an organic porous ion exchanger having a three-dimensionally network structure which has a continuous pore structure comprising macropores connected with each other and, being present in the wall between them, a mesopore having a radius of 0.01 to 50 ?m, has a total pore volume of 1 to 50 ml/g, exhibits a value obtained by dividing the half width of the main peak of the pore distribution curve thereof by the radius of the peak top of the main peak of 0.5 or less, and has ion exchange groups introduced so that the exchanger has an ion-exchange capacity of 0.1 to 5000 ?g equivalent/g-dry organic porous ion exchanger. The separation column exhibits high performance capability especially for the separation and concentration of low molecular weight ions, and thus can be used for passing a sample solution through it with a reduced pressure while retaining a high capability for ion resolution.

Abstract: A sulfonated organic porous material in which at least 0.5 mg-equivalent/g (on a dry basis) of sulfonic acid groups has been introduced can be obtained by causing a gaseous substance containing sulfuric anhydride to come in contact with an organic porous material having mesopores existing on the walls of interconnected macropores and having a median radius of 0.01–100 ?m and a total pore volume of 1–50 ml/g. This preparation method can ensure the introduction of a large amount of sulfonic acid groups into an organic porous material in a short period of time.

Abstract: A water-soluble lithium salt is added as a tracer substance along with a water treatment chemical to water to be treated. The concentration of lithium ions is electrochemically or optically measured using a lithium ion sensitive substance, so as to perform concentration control of the water treatment chemical added to water to be treated. An ion selective electrode, ion selective field effect transistor, or ion optode may be employed to perform the electrochemical or optical measurement using a lithium ion sensitive substance.

Abstract: An organic porous material having selective adsorption ability for boron, characterized in that it has an open cell structure comprising macro pores jointed to one another and, formed within the wall of the macro pore, meso pores having a pore diameter of 0.02 to 200 ?m, has a total pore volume of 1 to 50 ml/g, and contains a compound capable of forming a complex with boric acid introduced through a covalent bonding in an amount of 1 ?mol/g-dry porous material or more. The organic porous material exhibits improved ability for adsorbing boron and also is excellent in stability, and a boron removing module and an ultra-pure water production apparatus using the porous material have extremely high utility.

Abstract: An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 ?m in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve characteristics wherein the value obtained by dividing the half-width of the pore distribution curve at the main peak by the radius at the main peak is 0.5 or less. The organic porous material is useful as an adsorbent having high physical strength and excelling in adsorption amount and adsorption speed, an ion exchanger excelling in durability against swelling and shrinkage, and a filler for chromatography exhibiting high separation capability.

Abstract: Organic matter and metal impurities present on the surface of a photomask are removed. Foreign matter still adhering to the surface of the photomask is removed with H2 gas dissolved water. The photomask is dried. Thus provided is a method of washing a photomask in a manner which permits attaining an effect of removing foreign matter equivalent or superior to that of a conventional method with a small amount of chemical solution and reducing the amounts of chemicals and high purity water.

Abstract: A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 ?m existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.

Abstract: A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 ?m existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.

Abstract: A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 ?m existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.

Abstract: The electrodeionization water producing apparatus comprising a depletion chamber packed with an ion exchange material, the depletion chamber being partitioned by a cation exchange membrane on one side and an anion exchange membrane on the other side, and concentrate chambers installed on both sides of the depletion chamber with the cation exchange membrane and the anion exchange membrane disposed inbetween, the depletion chamber and the concentrate chambers disposing between an anode chamber equipped with an anode and a cathode chamber equipped with a cathode, wherein the concentrate chambers are packed with an organic porous ion exchange material having a continuous pore structure in which the wall made from interconnected macropores contains mesopores with an average diameter of 1 to 1,000 ?m. The apparatus ensures reduction of electric resistance and does not form scale in the concentrate chamber during long continuous operation.

Abstract: A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 ?m existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.

Abstract: A module filled with an organic porous ion exchanger is placed midway on a pipe for transporting high-purity water to be supplied to a point-of-use. As the organic porous ion exchanger is used an organic porous ion exchanger having a three-dimensional mesh structure with mesopores, having an average diameter of 1 ?m to 1000 ?m, in a wall between interconnected macropores and in which an ion exchange group is uniformly distributed and an ion exchange capacity is 0.5 mg equivalent weight/gram of dried porous body or greater.